Tropical Storm Beryl is forecast to become a Hurricane before making landfall along the middle Texas Coast early Monday morning. Flash, urban and river flooding, dangerous storm surge, and a few tornadoes will be possible. In the west, dozens of daily record high temperatures are forecast to be tied or broken into the work week as a result of a dangerous long-duration heat wave. Read More >
Click on a month below to display the normals, means, and extreme events for temperature and precipitation:
| JANUARY | FEBRUARY | MARCH |
| APRIL | MAY | JUNE |
| JULY | AUGUST | SEPTEMBER |
| OCTOBER | NOVEMBER | DECEMBER |
DAILY NORMALS AND RECORDS FOR THE MONTH OF JANUARY FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP NS RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR MXSN YEAR
01 43 27 0.09 0.1 68 /2005 23 /2018 -6 /1968 56 /2022 1.73 2003 6.9 1971
02 43 26 0.09 0.2 67 /2000 24 /1968 -7 /1968 44 /1966 1.40 1979 3.0 2014+
03 43 26 0.10 0.1 69 /2023 23 /1979 1 /2018 55 /2000 1.37 1999 3.9 2022
04 43 26 0.09 0.1 74 /1997 20 /1981 5 /1979 53 /2023 0.89 1992 1.8 1980
05 43 26 0.10 0.2 69 /1997 19 /2018 5 /1970 57 /2007 1.11 1993 6.4 1980
06 43 26 0.09 0.1 71 /2007 19 /2018 4 /1999+ 56 /2007 0.94 1995 4.2 2015
07 43 26 0.09 0.2 71 /2008 18 /2014 -1 /2018 61 /1998 1.56 1996 19.8 1996
08 43 26 0.09 0.1 70 /2008 12 /1970 -4 /1970 62*/1998 1.07 1978 4.7 1990
09 42 26 0.09 0.2 64 /2008 8 /1970 -8 /1970 43 /2006 1.39 1964 3.5 1997
10 42 25 0.10 0.2 59 /2016 13 /1982 0 /1982 42 /1972 1.00 2016 6.2 1965
11 42 25 0.10 0.2 71 /1975 19 /1962 -5 /1988 48 /2020 0.90 1991 2.2 1991
12 42 25 0.09 0.3 70 /2018+ 20 /1984 -4 /1977 58 /2018 0.91 2018 6.1 1996
13 42 25 0.10 0.2 69 /2005 23 /1977+ -3 /1981+ 49 /2007 1.03 1964 7.7 2019
14 42 25 0.10 0.2 72 /1995 22 /1988+ 5 /1970 54 /2007 1.79 2005 0.3 1978
15 42 25 0.09 0.3 68 /2007 15 /1994 -7 /1964 60 /1995 1.56 1995 1.4 1968
16 42 25 0.10 0.2 65 /1974 14 /1972 -4 /1964 41 /1995 1.10 2022 2.3 2022+
17 42 25 0.10 0.3 70 /1990 8 /1982 -7 /1982 40 /2017+ 1.14 1994 4.2 1985
18 42 25 0.09 0.2 70 /1990 19 /1997+ -1 /1994 47 /1990+ 1.18 1980 4.2 1984
19 42 25 0.09 0.3 65 /1972 6*/1994 -6 /1994 44 /1986 1.36 1987 4.3 1978
20 42 25 0.10 0.2 63 /2006 15 /1994 -7 /1985 40 /1995 1.01 1979 4.6 2000
21 42 25 0.10 0.3 63 /2018 15 /1984 -16 /1984 46 /2017 0.94 1974 8.5 2014
22 42 25 0.09 0.2 68 /1986 15 /2014 -18*/1984 48 /2018 1.18 1987 11.1 1987
23 43 25 0.10 0.3 72 /1967 20 /2003 -4 /1978+ 45 /1999 1.88 2016 22.1*2016
24 43 25 0.10 0.3 73 /1967 21 /2014 -2 /1987 45 /1990 1.33 2019 2.5 1977
25 43 25 0.10 0.2 73 /1967 18 /1987 -5 /1987 49 /1990 1.57 1978 10.3 2000
26 43 25 0.09 0.3 70 /1967 21 /1966 3 /1987 40 /2017+ 1.31 2011 7.3 2011
27 43 25 0.09 0.3 71 /1974 22 /2003 -9 /1987 39 /2012+ 0.95 1976 2.0 2009
28 43 25 0.10 0.2 68 /2002 18 /2014 -17 /1987 45 /2018 1.64 1998 6.7 1994
29 43 25 0.09 0.3 75*/1975 10 /1966 -1 /1987+ 43 /2002+ 0.95 1990 7.2 1966
30 43 25 0.10 0.3 72 /2013 12 /1966 2 /1965 56 /2013 2.00*2013 6.3 2000
31 43 25 0.09 0.3 66 /2012 22 /2019 -7 /1965 47 /2002 0.68 1985 4.7 1985
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST.. 6.61" 1979
DRIEST....0.40" 1981
SNOWIEST..30.9" 1996
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 42.6 MIN 25.2 AVG 33.9 PCP 2.94" SNW 6.9"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
MXSNO=DAILY MAX SNOWFALL (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Thu Jan 5 16:00:03 GMT 2023
DAILY NORMALS AND RECORDS FOR THE MONTH OF FEBRUARY FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP NS RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR MXSN YEAR
01 43 25 0.09 0.3 75 /2002 21 /1971 2 /1965 52 /1988 1.44 2008 2.5 2021
02 44 25 0.10 0.3 68 /1990 25 /1971 5 /2004 44 /1990 1.23 1973 4.7 1996
03 44 25 0.09 0.3 67 /2020 19 /1996 1 /1965 42 /2006+ 1.33 2014 3.5 1996
04 44 25 0.10 0.3 70 /1991 14 /1996 4 /1996+ 53 /2020 2.17 1998 6.2 1995
05 44 25 0.09 0.3 73 /1991 20 /2007+-10 /1996 38 /1986 1.47 2010 14.9 2010
06 44 25 0.10 0.3 71 /2008 23 /1995+ -9 /1996 51 /2008+ 1.98 2010 17.5 2010
07 44 25 0.09 0.3 72 /2017 22 /1967 -1 /1995 50 /2017 1.53 1965 10.5 1967
08 45 26 0.09 0.2 71 /2017 25 /1985 -6 /1967 52 /2017 0.84 1997 6.8 1997
09 45 26 0.09 0.3 71 /2023 24 /1979 -5 /1967 40 /2023 1.07 1970 2.2 2010
10 45 26 0.09 0.2 65 /2023+ 22 /1994 -10 /1979 41 /2023+ 0.65 1970 7.1 2010
11 45 26 0.08 0.3 71 /2009 18 /1979 -7 /1979 46 /2020+ 2.07 1983 22.5*1983
12 45 26 0.09 0.2 74 /1999 23 /1979+ 3 /1964 47 /1965 1.77 1985 5.1 1979
13 46 26 0.09 0.3 65 /1974 21 /1979 -8 /1983 41 /1984+ 1.29 1972 11.7 2014
14 46 26 0.09 0.2 71 /1990 24 /2016+ -5 /1979 50 /1984 1.27 1984 3.4 1970
15 46 27 0.09 0.3 76 /2018 18 /2015 6 /2015 49 /2023 0.57 2021 4.2 2003
16 46 27 0.10 0.2 70 /1976 16 /2015 6 /2015 49 /1982 2.33*2003 15.9 2003
17 47 27 0.09 0.3 75 /1976 16 /1979 -4 /1979 55 /1976 1.36 1998 4.1 1967
18 47 27 0.10 0.2 75 /2011 8*/1979 -14*/1979 53 /2011 1.29 1964 2.5 1979+
19 47 27 0.09 0.3 71 /1997 15 /2015 6 /2015 50 /2017 1.34 1972 13.8 1979
20 47 28 0.10 0.2 77 /2018 19 /2015 -2 /1979 47 /2018 1.02 1996 4.7 2019
21 48 28 0.09 0.2 80*/2018 26 /1968 7 /1972+ 59*/2018 0.93 2015 8.9 2015
22 48 28 0.10 0.2 71 /1991 21 /1963 4 /1968 52 /1981 1.69 2003 3.5 1986
23 48 28 0.09 0.3 80*/2023 30 /1999 5 /1963 52 /2017 1.34 1987 8.9 1987
24 48 28 0.10 0.2 79 /1985 27 /2015 -4 /2015 53 /2017+ 1.52 1979 9.1 1966
25 49 29 0.10 0.2 79 /2000 21 /1967 6 /2015 47 /2000 1.20 1979 4.5 2007
26 49 29 0.09 0.2 69 /2002+ 26 /2003 7 /1970 44 /2020+ 0.93 1962 2.7 1993
27 49 29 0.09 0.2 74 /1997 27 /2003 8 /1968 49 /1997 0.60 2000 4.1 2003
28 49 29 0.10 0.2 70 /1976+ 28 /2014 10 /2014+ 47 /1997 1.13 1966 4.1 2005
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST.. 6.27" 2003
DRIEST....0.25" 1978
SNOWIEST..46.1" 2010
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 46.1 MIN 26.7 AVG 36.4 PCP 2.61" SNW 7.0"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
MXSNO=DAILY MAX SNOWFALL (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Sun Feb 11 16:00:04 GMT 2024
DAILY NORMALS AND RECORDS FOR THE MONTH OF MARCH FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP NS RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR MXSN YEAR
01 50 30 0.10 0.2 77 /1972 18*/1980 11 /1980 53 /2017 1.06 1997 6.1 1969
02 50 30 0.10 0.2 77 /1972 23 /1980 12 /1980+ 64*/1972 1.51 1994 5.1 2009
03 50 30 0.10 0.2 74 /1967 30 /2009 1 /2014 50 /1991 1.43 1997 4.9 2014+
04 51 30 0.10 0.2 79 /1983+ 29 /2014 -1*/2014 59 /2008+ 2.16 1993 0.6 2016+
05 51 31 0.10 0.1 79 /1976 32 /1962 7 /1978 55 /1979 1.41 1965 9.5 2015
06 51 31 0.11 0.2 78 /2022 27 /2015 6 /2015 50 /2022+ 2.30 2011 3.3 2013
07 52 31 0.12 0.2 77 /2022 25 /1989 2 /2015 51 /2022 1.53 1967 2.3 1969
08 52 31 0.11 0.2 84 /2000 26 /1996 11 /2007+ 57 /2009 1.16 1995 4.7 1984
09 52 32 0.11 0.1 82 /2016 27 /1984 14 /1996 46 /1964 0.83 1999 8.9 1999
10 52 32 0.11 0.2 80 /2016 33 /1984 7 /1996 59 /2016 1.41 2011 1.4 1993
11 53 32 0.11 0.1 79 /2021 31 /1969 13 /1996 49 /1967 0.82 1963 1.0 1963
12 53 32 0.11 0.2 89*/1990 36 /1998+ 18 /1998+ 54 /2021 1.41 1968 4.5 1968
13 54 33 0.11 0.1 87 /1990 32 /1984 16 /1998 55 /2012 1.63 1977 13.9*1993
14 54 33 0.12 0.2 88 /1990 25 /1993 15 /1993+ 55 /2007 0.99 1999 4.1 2017
15 54 33 0.12 0.1 84 /2012 31 /2017 -1*/1993 61 /1990 0.89 1967 1.4 1999
16 55 34 0.12 0.2 81 /1990 36 /1978 16 /1969 64*/1990 1.56 2007 6.6 2014
17 55 34 0.12 0.1 77 /1963 30 /2014 16 /1970 52 /1990 1.14 1993 4.5 2014
18 55 34 0.12 0.1 80 /1989 31 /1993 13 /1976 51 /2012+ 1.16 1998 1.5 1994
19 56 34 0.12 0.1 76 /2022+ 37 /1993+ 10 /1967 57 /2022 1.07 1975 1.5 1997
20 56 35 0.12 0.1 80 /2020 32 /1965 18 /1981 55 /2020+ 1.81 2003 2.2 1990
21 57 35 0.12 0.1 78 /2010 34 /2018 14 /1965 54 /2012 2.69*2019 4.8 2018
22 57 35 0.11 0.1 83 /1968 35 /2002 12 /1988 54 /2012 0.93 1977 1.2 1992
23 57 36 0.11 0.1 83 /2012+ 41 /1992+ 17 /1969 54 /2012+ 2.21 1991 T 1972+
24 58 36 0.12 0.1 79 /1994+ 39 /2014 19 /2014 55 /2012 1.79 1979 3.0 1990
25 58 36 0.11 0.1 78 /2017 33 /2014 17 /1971 56 /1988 0.96 1984 3.8 2014
26 59 36 0.12 0.0 81 /2021 33 /2014 17 /1983 57 /2021 1.55 1988 0.8 1971
27 59 37 0.11 0.1 85 /1998 40 /1982 15 /2014 58 /1998 1.19 1994+ 0.1 2011
28 59 37 0.12 0.1 86 /1989 37 /2015 18 /2001 64*/1989 1.40 1984 0.3 1996
29 60 37 0.11 0.0 86 /1998 39 /1984 20 /1982 60 /1985 1.33 2001 4.2 1984
30 60 38 0.12 0.1 89*/1998 37 /1964 22 /1970 63 /1977 1.24 1974 5.3 1964
31 61 38 0.12 0.0 85 /1998 39 /1964 17 /1964 62 /1998 1.55 2017 1.7 1964
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST.. 7.65" 1993
DRIEST....0.07" 2006
SNOWIEST..19.8" 2014
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 54.8 MIN 33.6 AVG 44.2 PCP 3.50" SNW 3.9"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
MXSNO=DAILY MAX SNOWFALL (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Thu Mar 7 16:00:04 GMT 2024
DAILY NORMALS AND RECORDS FOR THE MONTH OF APRIL FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP NS RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR MXSN YEAR
01 61 38 0.11 0.0 85 /1978 41 /1964 17*/1969 64 /2016 1.64 1973 0.6 1964
02 62 39 0.11 0.0 86 /1967 42 /1964 21 /1964 55 /2000 2.07 2005 T 1992+
03 62 39 0.12 0.0 86 /1981 46 /1987 23 /1991 59 /2015 0.70 2008 T 2016+
04 62 39 0.10 0.0 85 /2011 45 /1979+ 22 /2013+ 63 /1981 1.47 1987 0.2 1990
05 63 40 0.10 0.1 88 /2023 42 /1987 22 /1965 58 /2023 1.75 1960 T 2016+
06 63 40 0.11 0.0 93*/2010 42 /1970 24 /2016+ 61 /2010 1.57 2017 2.7*1990
07 64 40 0.11 0.0 91 /2010 42 /2007+ 21 /1977 65 /2010 1.33 1988 1.1 1990
08 64 41 0.12 0.0 87 /1991 38*/1972 24 /1970 60 /2019 1.15 2000 T 2000+
09 65 41 0.11 0.0 89 /2001 42 /1997+ 23 /1977 62 /1991 1.02 1998 2.6 1982
10 65 41 0.12 0.0 89 /2013 46 /1989 19 /1985 58 /2013 0.84 1983 T 1996+
11 65 42 0.11 0.0 87 /1977 46 /1973+ 25 /1971+ 60 /2021 0.74 2009 T 1986+
12 66 42 0.11 0.0 87 /1977 42 /1973 23 /1982 59 /2017 1.45 2004 1.0 1973
13 66 42 0.10 0.0 87 /2023+ 41 /1966 24 /1990 61 /2019 1.79 2020 T 1966
14 67 43 0.11 0.0 87 /1960 47 /1991+ 20 /1975 63 /2014 2.13 1970
15 67 43 0.11 0.0 87 /1967 47 /2007+ 28 /1997+ 62 /2023 1.96 1983 T 2020+
16 67 43 0.11 0.0 91 /2002 46 /2007+ 28 /1981 63 /2017 2.43 1993 T 1988
17 68 44 0.11 0.0 93*/2002 45 /2018 27 /1983 59 /1982+ 1.44 2000 T 1983
18 68 44 0.11 0.0 90 /1976 43 /2003 29 /2018 62 /2002 0.59 1978 T 2022
19 68 44 0.11 0.0 91 /2002 44 /1983 27 /2001+ 64 /2019 1.26 2019 T 2022
20 69 45 0.12 0.0 88 /2023+ 50 /1991 28 /1974 63 /1996 2.90 2008 T 1983
21 69 45 0.12 0.0 89 /1985 46 /1964 29 /1983 61 /2017 2.20 1992
22 69 45 0.12 0.0 92 /1985 47 /1972 27 /1975 62 /2016+ 2.88 2006 T 1993
23 70 46 0.13 0.0 88 /2001 47 /2012+ 30 /1989 66 /1977 0.67 1963 T 1986
24 70 46 0.12 0.0 85 /2011+ 48 /2005 30 /1989 61 /1975 1.25 1983
25 70 46 0.13 0.0 93*/1960 45 /1965 29 /1969 59 /1979 1.34 1973 T 2015
26 71 47 0.12 0.0 92 /2009+ 53 /1980+ 31 /1967 67 /2011 0.93 2004
27 71 47 0.13 0.0 92 /2009+ 48 /1967 31 /1987+ 68*/2011 1.65 1973 T 1994
28 71 48 0.13 0.0 88 /2021+ 44 /1966 32 /1993+ 62 /2009 1.68 2002
29 71 48 0.13 0.0 89 /2017 47 /1966 32 /1987 65 /2021+ 1.19 2014
30 72 48 0.13 0.0 86 /2017+ 49 /1964 29 /1977 66 /2017 3.99*2014
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST.. 7.41" 2014
DRIEST....0.33" 1985
SNOWIEST.. 4.0" 1990
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 66.8 MIN 43.2 AVG 55.0 PCP 3.47" SNW 0.1"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
MXSNO=DAILY MAX SNOWFALL (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Thu Apr 18 16:00:04 GMT 2024
DAILY NORMALS AND RECORDS FOR THE MONTH OF MAY FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP NS RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR MXSN YEAR
01 72 48 0.14 0.0 90 /2010 47*/1963 33 /1996 70 /2017 1.42 1981 T 1963
02 72 49 0.14 0.0 88 /2018+ 51 /1995 34 /1979+ 70 /2010 1.39 2016
03 72 49 0.14 0.0 92 /1965 56 /2023+ 32 /2005+ 67 /2010 1.03 1984
04 72 49 0.15 0.0 90 /2018+ 52 /1994 31 /1967 64 /2021+ 1.23 1996
05 73 50 0.14 0.0 88 /1980 51 /2003 29 /1976 62 /2006 2.34 1989 T 1998
06 73 50 0.15 0.0 90 /1986 54 /2016 36 /1968 61 /2012+ 1.18 2022
07 73 50 0.13 0.0 90 /2000+ 51 /1996+ 28*/1970 60 /1986 1.51 1967
08 73 51 0.15 0.0 90 /2000 54 /2006 29 /1974 66 /2000 2.10 1960
09 74 51 0.15 0.0 91 /1963 50 /2020 30 /1976 66 /1964 0.93 1974
10 74 51 0.15 0.0 90 /1963 55 /1966 31 /1983+ 66 /1979 1.61 1990
11 74 52 0.15 0.0 90 /1993 55 /2010 29 /1966 66 /2004 3.73*2008
12 74 52 0.16 0.0 90 /2018 50 /2008 34 /1969 66 /2015 1.37 1974
13 74 52 0.15 0.0 92 /2000 52 /1967 32 /1976 65 /2004+ 1.93 1971
14 75 52 0.16 0.0 89 /2010 55 /1967 32 /2013+ 66 /2004 1.87 2018
15 75 53 0.16 0.0 90 /1962 59 /2016 37 /2016+ 65 /2009+ 2.40 2003
16 75 53 0.15 0.0 90 /1998 58 /1989 35 /2000 66 /2009 1.97 2014
17 75 53 0.16 0.0 93 /1960 51 /2003 30 /1984 65 /1974 1.22 1970
18 75 54 0.15 0.0 91 /1987 54 /2003 33 /1973 68 /2015 3.13 1988
19 76 54 0.15 0.0 92 /1997+ 52 /1981 36 /2002 66 /2017+ 1.18 1988
20 76 54 0.16 0.0 93 /1996 57 /1987 36 /2002 69 /2019 1.86 2005
21 76 55 0.17 0.0 92 /2022+ 58 /2015 33 /1992 67 /2022+ 1.06 2003
22 76 55 0.16 0.0 91 /2022+ 57 /2016+ 31 /2002 69 /2022 2.07 2001
23 77 55 0.16 0.0 92 /2021+ 56 /2003 39 /2002+ 70 /2004 2.40 2010
24 77 55 0.16 0.0 90 /1964 58 /2005 36 /1963 69 /2004 0.83 2005+
25 77 56 0.16 0.0 92 /1991 56 /1973 36 /1967 67 /2004 1.76 1997
26 77 56 0.15 0.0 92 /2021+ 55 /1992 38 /1967 71*/2018 3.59 2009 T 2002
27 78 56 0.15 0.0 92 /2010+ 55 /1996 37 /1972 69 /2008+ 1.45 1968
28 78 57 0.16 0.0 90 /2019+ 54 /1968 37 /1994 70 /2020+ 2.16 1982
29 78 57 0.16 0.0 97*/1969 58 /1996 40 /1997 69 /2012 1.00 1984
30 78 57 0.15 0.0 95 /2006+ 57 /2021 38 /1996 70 /2011 2.65 1960
31 79 57 0.15 0.0 94 /2022+ 66 /1984 37 /1984 71*/2006+ 2.35 2018
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST..10.26" 2009
DRIEST....0.34" 2007
SNOWIEST..TRACE 2002
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 75.0 MIN 53.0 AVG 64.0 PCP 4.72" SNW 0.0"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
MXSNO=DAILY MAX SNOWFALL (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Thu May 23 16:00:05 GMT 2024
DAILY NORMALS AND RECORDS FOR THE MONTH OF JUNE FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR
01 79 58 0.15 95 /2011 63 /2001+ 39 /1984 72 /2011 1.22 1969
02 79 58 0.15 93 /2023 64 /1974+ 41 /1993 69 /2022+ 2.93 1969
03 80 58 0.14 95 /2020 56*/1997 39 /1986 70 /2016 4.34 1991
04 80 59 0.15 91 /2020 59 /2003 40 /1977+ 70 /2016 1.63 2008
05 80 59 0.15 92 /2021 60 /2004 40 /1976 68 /2016+ 1.42 1963
06 80 59 0.15 93 /2021 65 /2000 39 /1976 70 /1981 1.83 1983
07 81 60 0.15 96 /1999 63 /1997 45 /1977 72 /2021+ 1.88 1989
08 81 60 0.15 97 /2007 67 /1963 36*/1977 73 /2021 1.71 2014
09 81 60 0.14 97 /2011 63 /1988 43 /1975 71 /2021+ 0.66 1977
10 82 60 0.15 99 /1964 62 /1998 43 /1988 74*/2020 1.16 2009
11 82 61 0.14 95 /2016 65 /2018 40 /1972 72 /2005 1.07 2004
12 82 61 0.15 96 /1986 69 /1995+ 44 /1980+ 72 /1986 1.88 1968
13 83 61 0.14 95 /2017 63 /1982 43 /1980 72 /2005 2.03 1982
14 83 62 0.15 98 /1994 67 /2007 41 /1979 73 /1994 1.02 2021
15 83 62 0.15 99 /1994 65 /1971 42 /1978 74*/1981 1.70 1960
16 83 62 0.14 96 /1994+ 58 /1965 47 /1978 73 /2022+ 2.82 2016
17 84 63 0.15 96 /2022 59 /1965 46 /1980 72 /1996 1.01 1979
18 84 63 0.13 94 /2018+ 68 /2012 45 /1965 73 /2017 1.14 1991
19 84 63 0.13 98 /1994 71 /2000 45 /1986 71 /2021+ 1.99 2003
20 85 63 0.13 97 /1964 64 /1999 48 /2022+ 72 /2019 1.49 1962
21 85 64 0.14 98 /1988 68 /1979 49 /1992 71 /2015 10.67* 1972
22 85 64 0.14 99 /1988 66 /1972 48 /1992+ 71 /2011 2.06 2001
23 85 64 0.14 96 /1988+ 61 /1972 44 /1992 73 /2011 0.59 2016
24 86 64 0.14 97 /2010 70 /1979 46 /1979 73 /2010 1.76 1994
25 86 65 0.14 97 /1966 73 /1974 44 /1979 71 /1981 5.94 2006
26 86 65 0.15 95 /1998 74 /1975+ 42 /1979 72 /2002 1.92 2006
27 86 65 0.14 100 /1964 73 /1974 44 /1979 72 /2021+ 1.47 2015+
28 86 65 0.14 97 /1966 63 /1974 44 /1970 74*/2021 1.06 1983
29 87 65 0.14 102*/2012 73 /1983 47 /1970 74*/2010 2.70 1975
30 87 66 0.14 98 /1964 71 /1983 51 /1989 73 /1991 1.25 1972
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST..18.19" 1972
DRIEST....0.52" 1988
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 83.1 MIN 61.9 AVG 72.5 PCP 4.30"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Sat Jun 3 16:00:04 GMT 2023
DAILY NORMALS AND RECORDS FOR THE MONTH OF JULY FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR
01 87 66 0.14 96 /2012 72 /1993+ 41*/1988 72 /2017+ 0.76 1984
02 87 66 0.15 98 /1966 69 /1978 44 /1988 75 /2022 2.36 1968
03 87 66 0.13 103 /1966 67 /1978 50 /1977+ 73 /2018+ 1.66 1978
04 87 66 0.14 97 /2002+ 72 /2016 48 /1986 75 /2018 1.87 2001
05 87 66 0.13 99 /1999+ 68 /1972 50 /1996+ 74 /2018+ 1.43 2005
06 87 66 0.13 102 /1977 73 /1972 45 /1979 76 /2012+ 1.68 2017
07 88 67 0.13 101 /2012+ 77 /1983 47 /1970 75 /2012 1.59 2005
08 88 67 0.14 101 /2012 70 /1980+ 48 /1984+ 78*/2010 1.96 2005
09 88 67 0.13 99 /1993+ 72 /2022 48 /1984 74 /2010+ 2.23 1970
10 88 67 0.14 99 /1993+ 73 /1969 53 /1963 74 /2013+ 1.63 1995
11 88 67 0.13 98 /1988 74 /1965 52 /1983 74 /1989 3.71 2013
12 88 67 0.13 97 /1986 71 /1999 47 /2002 74 /2021 2.61 1990
13 88 67 0.14 97 /1986+ 66*/1990 52 /1978 75 /2021 1.30 1975
14 88 67 0.14 98 /1993 71 /1963 53 /2009 73 /2013+ 1.56 2002
15 88 67 0.14 98 /1995 77 /2000+ 53 /1987+ 73 /2012+ 1.01 2005
16 88 67 0.14 104 /1988 74 /1989 57 /1991+ 74 /2013 1.65 1989
17 88 67 0.14 100 /1997+ 78 /1989 55 /2014+ 75 /1988 1.11 2018
18 88 67 0.15 101 /2012 77 /2001 51 /1985 74 /2019+ 1.66 2017
19 88 67 0.13 98 /2020+ 77 /2000 53 /1976 77 /2013 1.52 1968
20 88 67 0.14 101 /1980 77 /1965 55 /1974 75 /2020+ 2.28 1970
21 88 67 0.13 101 /1991 69 /2012 48 /1966 77 /1987 5.02* 2018
22 88 67 0.13 105*/2011 70 /1996 50 /1974 76 /2011 2.25 1969
23 88 67 0.13 99 /2011+ 71 /1970 50 /1983+ 76 /2011 1.51 1988
24 88 67 0.14 99 /2010 68 /1997 48 /1985 78*/2010 0.86 2020
25 88 67 0.12 100 /2016 72 /2004 55 /1976 76 /1965 1.54 1992
26 88 67 0.13 98 /2012+ 70 /2002 50 /1976 76 /2016+ 0.76 1989
27 88 67 0.12 98 /2023+ 79 /1994+ 52 /1977 75 /2016 3.50 1994
28 88 67 0.13 99 /1993 76 /1984 47 /1977 75 /1963 1.65 2000
29 88 67 0.12 103 /2011 66*/2001 52 /2014 74 /2002 0.92 2001
30 88 67 0.13 98 /1988 67 /1972 48 /2014 76 /2011 1.29 2018
31 88 67 0.13 98 /1999 70 /1989 50 /1997 75 /2004 1.87 1978
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST..11.21" 2018
DRIEST....0.86" 1962
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 87.6 MIN 66.8 AVG 77.2 PCP 4.15"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Sun Jul 7 16:00:04 GMT 2024
DAILY NORMALS AND RECORDS FOR THE MONTH OF AUGUST FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR
01 87 67 0.12 100 /1980 75 /1985 54 /1997 74 /2006 1.09 2018
02 87 67 0.11 99 /2002 78 /1976 52 /1998 77 /2020 1.37 2004
03 87 67 0.13 99 /2006+ 75 /1964 50 /1998+ 75 /2006 1.03 1970
04 87 67 0.12 99 /2002 75 /1964 51 /1976 75 /2012 1.87 2020
05 87 66 0.12 99 /1995 76 /1969+ 54 /1992+ 76 /1989 1.78 1990
06 87 66 0.12 96 /2007+ 69 /1993 50 /1966 74 /2016 2.49 1986
07 87 66 0.12 97 /2007 74 /2017 49 /1994 74 /2011+ 2.33 2000
08 87 66 0.12 101 /2007 75 /1989+ 49 /1989 79*/2007 0.74 2005
09 87 66 0.12 97 /2001+ 67 /1990 47 /1989 75 /2013 2.28 1969
10 87 66 0.11 97 /2009 74 /1989 51 /1999 75 /2016+ 2.38 1984
11 87 66 0.11 99 /2021 69 /1989 47 /1972 75 /2016+ 4.68* 1984
12 87 66 0.11 100 /2021 64*/1979 51 /1962 77 /2016 2.07 1996
13 87 66 0.11 99 /2021+ 72 /1996 50 /1964 78 /2016 1.48 2003
14 87 66 0.11 100 /1985 72 /2004 49 /1983 76 /2016 1.12 2008
15 87 66 0.11 102 /1988 66 /1992 45 /1964 75 /1988 2.18 2019
16 87 65 0.10 100 /1997 70 /1992 46 /1979 73 /1997+ 1.45 2003
17 87 65 0.11 101 /1988 71 /1972 44 /1979 75 /1995 3.32 1997
18 86 65 0.11 98 /2009 71 /1985 45 /1981 75 /2017 1.39 2010
19 86 65 0.11 95 /2019+ 73 /1997 51 /1998 74 /2002 1.54 1967
20 86 65 0.11 104*/1983 70 /1997 47 /1998+ 74 /2002 2.17 1963
21 86 65 0.10 96 /1962 70 /2007+ 47 /1976 76 /1962 2.72 2018
22 86 65 0.11 101 /1983 69 /1990 51 /1976+ 73 /1975 0.94 2009
23 86 65 0.12 96 /1998 70 /1967 47 /1981 76 /2002 1.60 2001
24 86 64 0.11 97 /1998 70 /1967 46 /1987+ 73 /2021+ 3.88 1967
25 85 64 0.13 97 /2023+ 74 /1987+ 47 /1971 72 /2007+ 3.03 1999
26 85 64 0.12 95 /2016+ 75 /2019 48 /1977 74 /2023+ 1.48 1965
27 85 64 0.12 100 /1987 70 /2005 46 /1969 73 /2023 1.98 1971
28 85 64 0.11 98 /1993 69 /2002+ 44 /1986 74 /1993 1.73 2002
29 85 63 0.11 98 /1991 67 /2017 38*/1982 74 /2018 1.17 1963
30 85 63 0.11 99 /1991 73 /2002+ 41 /1986 72 /2021+ 1.21 1978
31 84 63 0.11 98 /1991 72 /1975 43 /1976 73 /2000+ 3.21 1975
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST..10.71" 1984
DRIEST....0.23" 1962
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 86.3 MIN 65.2 AVG 75.7 PCP 3.53"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Mon Aug 28 16:00:04 GMT 2023
DAILY NORMALS AND RECORDS FOR THE MONTH OF SEPTEMBER FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR
01 84 63 0.12 98 /1980+ 65 /2002 49 /1976+ 73 /2000 2.76 2006
02 84 63 0.12 99*/1980 61 /2017 44 /1970 72 /2020+ 0.97 1969
03 84 62 0.13 96 /1993 73 /1986+ 45 /1967 77*/1993 1.47 1969
04 83 62 0.12 95 /1985 70 /1981 48 /1997 72 /2018 1.29 1996
05 83 62 0.12 96 /1985 68 /2006 42 /1997 73 /1999 3.78 1979
06 83 61 0.12 98 /1983 63 /2011 45 /1976+ 72 /2018+ 5.11 2008
07 82 61 0.12 95 /1985+ 68 /1974 41 /1976 72 /2018 1.11 2011
08 82 61 0.12 96 /2016 69 /1986 43 /1984 72 /2016+ 3.56 1987
09 82 61 0.13 98 /2016 64 /2018 40 /1986 74 /2016 1.40 2018
10 82 60 0.12 99*/1983 68 /2018+ 43 /1981 74 /2020 1.50 1968
11 81 60 0.13 99*/1983 69 /2009+ 40 /1976 72 /1971+ 0.72 1987
12 81 60 0.13 95 /2019+ 67 /2003 40 /1967 71 /1963 1.18 1965
13 80 59 0.13 94 /1974 61 /1964 43 /1985 71 /2018 0.68 1983
14 80 59 0.14 95 /1998 64 /1963 37 /1985 72 /2018 5.52* 1966
15 80 58 0.14 95 /1998+ 60 /1963 38 /1985 71 /2005+ 1.06 1981
16 79 58 0.15 97 /1991 62 /2011+ 37 /1984 69 /2021+ 2.05 1999
17 79 58 0.14 97 /1991 64 /2011 35 /1986 71 /2018+ 1.71 2004
18 79 57 0.15 91 /1978 67 /1990+ 37 /1990 70 /2016 1.76 2003
19 78 57 0.14 93 /1978+ 63 /2000 36 /1984 69 /2016 1.26 2000
20 78 56 0.14 91 /1965 62 /1966 40 /1979 70 /1988 0.87 1966
21 77 56 0.13 92 /1998+ 62 /1973+ 33 /1962 70 /1989+ 2.59 1979
22 77 56 0.12 94 /2010+ 63 /1994 35 /1962 72 /1989+ 1.57 1982
23 77 55 0.12 94 /2019 57 /1995 33 /1983 68 /2019+ 1.74 2003
24 76 55 0.13 97 /2010 55 /1995 30*/1974 72 /2009 2.17 2001
25 76 54 0.13 93 /2010 56 /1992 33 /1983 68 /2010 2.67 1975
26 75 54 0.13 93 /2007 53 /2000 38 /1983+ 70 /2018 2.15 1975
27 75 53 0.14 96 /1998 54 /1966 35 /1984 69 /2011 1.55 1985
28 75 53 0.14 86 /2019+ 47*/1984 34 /1989 66 /1999 1.61 2004
29 74 52 0.14 89 /2019 60 /1964 34 /1978 69 /2015 2.23 1963
30 74 52 0.15 92 /1986 57 /1993 35 /1993 68 /2019+ 4.74 2010
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST..11.26" 1975
DRIEST....0.15" 2005
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 79.3 MIN 57.9 AVG 68.6 PCP 3.94"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Fri Dec 3 06:41:11 GMT 2021
DAILY NORMALS AND RECORDS FOR THE MONTH OF OCTOBER FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP NS RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR MXSN YEAR
01 73 52 0.13 0.0 90 /1986 55 /1984 31 /1993 67 /2019 4.06 1979
02 73 51 0.13 0.0 96*/2019 50 /2011 32 /1998+ 69 /2019 2.35 2012
03 73 51 0.12 0.0 86 /2018+ 49 /1974 30 /2003+ 72 /2019 0.86 1987
04 72 50 0.13 0.0 90 /2013 55 /2022 26 /1974 69 /1986 0.81 1999
05 72 50 0.12 0.0 90 /2013+ 57 /1965 32 /1970 66 /1995 2.04 1971
06 72 49 0.13 0.0 89 /2013 57 /2006 28 /1968 67 /2021 1.05 2006
07 71 49 0.12 0.0 91 /2007 52 /2012 31 /1988 69 /2005 3.50 2005
08 71 48 0.13 0.0 92 /2007 51 /2012 30 /2001 73*/2017 2.79 2005
09 70 48 0.12 0.0 94 /2007 51 /2000 26 /2001 69 /2018+ 2.53 1976
10 70 48 0.11 0.0 87 /2017 44 /1979 31 /1978+ 69 /2018 2.22 2013 1.3*1979
11 70 47 0.12 0.0 86 /2010 54 /1979 28 /1972 65 /2017 3.38 2013
12 69 47 0.11 0.0 83 /2010+ 54 /1988 25 /1964 63 /1983 0.78 1990
13 69 46 0.11 0.0 84 /1989 52 /1988 30 /2012+ 66 /1990 1.92 2011
14 69 46 0.11 0.0 86 /1975 51 /2009+ 23 /1988 63 /2014 1.61 1995
15 68 46 0.12 0.0 88 /1989 49 /2009 28 /1987 64 /1985 1.30 2014
16 68 45 0.12 0.0 85 /1989 44 /2009 30 /1986 61 /2008 1.10 2002 T 1977
17 67 45 0.11 0.0 84 /2016 45 /2009 31 /1982+ 62 /1989 1.11 1975
18 67 44 0.12 0.0 85 /2016 51 /1972+ 27 /1982+ 60 /1968 2.09 1996
19 67 44 0.12 0.0 87 /2016 42 /1972 25 /1976 64 /2016 1.36 1966 0.1 1972
20 66 44 0.12 0.0 83 /2016+ 44 /1974 20 /1972 65 /2016 1.44 2019 T 1974
21 66 43 0.12 0.0 86 /1979 49 /1974 22 /1972 60 /1979 2.45 1995
22 66 43 0.12 0.0 85 /1979 51 /1997 26 /1974 66 /1984 0.90 1985
23 65 43 0.12 0.0 85 /1978 48 /1969 21 /1969 67 /2007 2.63 1990
24 65 42 0.11 0.0 84 /2001 50 /2006+ 15*/1969 61 /1971 1.69 2009
25 65 42 0.12 0.0 80 /2021 46 /2005 27 /1969 63 /1971 3.39 1971
26 64 41 0.11 0.0 82 /1978 48 /2018+ 26 /1988+ 61 /2010 1.76 1977
27 64 41 0.10 0.0 84 /1963 43 /1976 21 /1988 65 /2010 1.89 2003
28 64 41 0.11 0.0 83 /1984 46 /1976 22 /1976 63 /1984 1.97 2015
29 63 41 0.12 0.0 82 /1984 39*/2011 19 /1976 58 /1984 4.25*2012 0.6 2011
30 63 40 0.11 0.0 84 /2016 39*/2002 20 /1969 58 /2019+ 1.00 2012
31 62 40 0.11 0.0 81 /2004+ 45 /1993 21 /1968 66 /1971 1.35 2019
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST.. 9.22" 2005
DRIEST....TRACE 1963
SNOWIEST.. 1.3" 1979
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 67.8 MIN 45.3 AVG 56.6 PCP 3.65" SNW 0.0"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
MXSNO=DAILY MAX SNOWFALL (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Wed Oct 5 16:00:03 GMT 2022
DAILY NORMALS AND RECORDS FOR THE MONTH OF NOVEMBER FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP NS RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR MXSN YEAR
01 62 40 0.11 0.0 84*/1982 46 /1992 25 /1975 68*/1971 1.07 1963
02 62 39 0.11 0.0 84*/1971 49 /2021+ 21 /1976 65 /1971 1.32 2018
03 61 39 0.11 0.0 81 /1990+ 44 /2006 22 /1980 63 /1977 0.72 1970
04 61 39 0.11 0.0 81 /2003+ 40 /1991 21 /1966 66 /1977 1.95 1970 T 1991+
05 61 38 0.11 0.0 81 /2022 43 /1991 19 /1991 66 /1977 1.60 2003 T 1973
06 60 38 0.10 0.0 80 /2015 43 /1967 16 /1991 66 /2022 2.42 1963
07 60 38 0.11 0.0 79 /2022+ 43 /2012+ 22 /1991+ 60 /2022 2.31 1997
08 59 38 0.11 0.0 77 /2020+ 39 /1976 18 /1967 57 /1977 2.14 1996 T 1995+
09 59 37 0.11 0.0 78 /1994 40 /1991 19 /1976+ 56 /1987+ 0.54 2015 T 1991+
10 59 37 0.11 0.0 77 /2020 41 /1991 21 /2003 60 /1966 2.08 1990 1.6 1968
11 58 37 0.10 0.0 78 /2006 34 /1987 16 /1973 62 /2020 1.21 2020 5.3 1987
12 58 36 0.10 0.0 74 /1964 41 /1996+ 22 /1988+ 57 /1985 1.92 2004 4.2 1968
13 58 36 0.10 0.0 75 /1964 37 /2019 19 /2019 55 /1985 0.87 2012 T 2014+
14 57 36 0.10 0.0 80 /1985 35 /1996 13 /1986 55 /1993 1.90 1972 0.7 1996
15 57 36 0.10 0.0 81 /1993 35 /1969 19 /1986 58 /1993+ 1.50 2018 3.0 2018
16 56 35 0.10 0.0 74 /2005+ 37 /1967 14 /1967 55 /2006 1.75 1989 T 2014+
17 56 35 0.10 0.1 75 /1963 37 /1980 17 /1976 53 /1993+ 1.03 1987 T 1980+
18 56 35 0.10 0.0 76 /1963 36 /2014 18 /2014 49 /1994 0.57 1968
19 55 35 0.10 0.0 76 /1985 35 /2014 13 /2014 55 /1985 1.93 2003 T 2016+
20 55 34 0.10 0.0 79 /1985 36 /1986 18 /1980 58 /1985 0.75 1983 T 2000+
21 54 34 0.10 0.0 76 /2007 30*/1987 16 /1969 62 /1991 0.83 2005 0.2 1987
22 54 34 0.10 0.0 75 /2007 35 /1989 14 /2014+ 56 /1991 1.54 1991 2.2 1989
23 54 34 0.10 0.0 70 /1990 34 /2018+ 14 /1984+ 56 /1999 1.25 1992 0.3 2005+
24 53 33 0.11 0.0 74 /1979 32 /2013 9*/1989 62 /1979 1.81 1971 2.9 1971
25 53 33 0.10 0.1 77 /1979 34 /2005 15 /1970 58 /1979 1.31 1964 0.3 1983
26 53 33 0.11 0.0 75 /1990 36 /1974 16 /1974 51 /1992 1.72 2013 1.6 2014
27 52 33 0.11 0.0 70 /2011 35 /1978+ 11 /1974 56 /1988 2.59*1993 2.9 1978
28 52 33 0.10 0.0 71 /1998+ 31 /1996 19 /1996 57 /1990 2.23 1993 T 2014+
29 51 32 0.10 0.1 73 /1998 35 /1977 17 /1967 58 /2001 2.04 1963 3.3 1995
30 51 32 0.11 0.0 72 /1991 30*/1976 11 /1976 62 /2001 1.38 2020 11.4*1967
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST.. 7.83" 1963
DRIEST....0.24" 1981
SNOWIEST..11.4" 1967
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 56.5 MIN 35.6 AVG 46.0 PCP 3.13" SNW 0.3"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
MXSNO=DAILY MAX SNOWFALL (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Wed Nov 8 16:00:06 GMT 2023
DAILY NORMALS AND RECORDS FOR THE MONTH OF DECEMBER FOR DULLES AIRPORT
DAILY TEMP NORMALS AND EXTREMES GREATEST PRECIP FOR CALENDAR DAY
DY NMX NMN NPCP NS RMX /YEAR LOMX/YEAR RMN /YEAR HIMN/YEAR MXPCP YEAR MXSN YEAR
01 51 32 0.11 0.1 75 /2006 30 /1964 4 /1967 55 /1991 2.02 1974 T 1992+
02 50 32 0.11 0.0 75 /1970 35 /1971+ 0 /1967 52 /1982 1.42 1986 T 2019+
03 50 31 0.12 0.1 74 /1998 26 /1976 7 /1976 54 /1982 1.14 1967 T 2005+
04 50 31 0.11 0.0 75 /1998 29 /1966 10 /1966 60 /1982 1.18 1993 1.0 2003
05 49 31 0.12 0.1 77 /2001 28 /2002 12 /1966 59 /1982 1.02 2003 6.2 2002
06 49 31 0.12 0.1 79*/1998 32 /2007+ 9 /2002 56 /2011 1.03 2016 1.0 2003
07 49 31 0.11 0.1 77 /1998 30 /1984 1 /2002 58 /1998 2.14 2011 1.6 1969
08 48 30 0.11 0.1 76 /1980 30 /1989 13 /2002 49 /1998 1.24 1972 5.0 1989
09 48 30 0.12 0.1 72 /1978 26 /1989 11 /1989 51 /1966 1.12 1973 4.0 2017
10 48 30 0.11 0.0 70 /1966 25 /1968 4 /1989 55 /1966 2.26 1992 2.6 1992
11 48 30 0.12 0.1 71 /1979 28 /1995+ 3 /1968 46 /2021 1.34 2008 0.5 1962
12 47 30 0.11 0.1 72 /1979 23 /1962 9 /1988 46 /1965 0.95 1964 10.6 1982
13 47 29 0.11 0.1 73 /2015 25 /1962 7 /1988 52 /1991 1.47 1996 8.8 1966
14 47 29 0.11 0.1 69 /2015 25 /2010+ 3 /1989 57 /2015 1.24 2020 3.6 2003
15 47 29 0.11 0.1 71 /1971 29 /2017 5 /1989 45 /2008 2.49 2018 4.7 1981
16 46 29 0.11 0.1 72 /1971 24 /2010+ 9 /2016 44 /1971 1.30 2020 5.2 1973
17 46 29 0.10 0.1 70 /1984 21 /1989 3 /1989 53 /2021 0.75 2000 4.3 1973
18 46 29 0.11 0.1 76 /2006 25 /1989 3 /1989 49 /1984 2.92*1977 2.0 2009
19 46 28 0.10 0.1 63 /1967 25 /1989 -2 /1989 42 /1984 1.34 2009 16.0*2009
20 45 28 0.11 0.0 64 /1988 22 /2004 8 /1991 43 /2011 0.66 1973 4.3 1966
21 45 28 0.10 0.1 70 /2013 25 /1989 4 /1989 51 /2013 1.15 1973 5.8 1962
22 45 28 0.10 0.1 71 /2013 15 /1989 2 /1989 62 /2013 2.14 2022 3.3 1962
23 45 28 0.11 0.1 68 /1990 20 /1989 4 /1989 61 /1990 1.30 2004 7.5 1963
24 45 28 0.10 0.1 71 /2015 22 /2022+ 1 /1983 63*/2015 2.01 1986 8.3 1966
25 44 27 0.10 0.1 71 /1982+ 11*/1983 -4*/1989 58 /2015 0.82 1969 6.0 1969
26 44 27 0.09 0.1 71 /1964 21 /1985+ -1 /1983 51 /2015+ 1.41 2012 6.1 1969
27 44 27 0.10 0.1 73 /1971 23 /1989 1 /1989 52 /1971 1.04 1964 4.4 1990
28 44 27 0.10 0.1 73 /1984 23 /2017 8 /1966 47 /1982 1.74 1967 2.3 1993
29 44 27 0.09 0.1 78 /1984 23 /1993 7 /1977 50 /1984 1.27 2013 3.3 1962
30 44 27 0.09 0.2 67 /1990 20 /1983 4 /1963 48 /2021 0.87 1969 0.9 1977
31 43 27 0.09 0.1 73 /1992 20 /1962 1 /1993 51 /2021 1.90 1975 8.5 1970
* EXTREME EVENT FOR THE MONTH
+ EVENT ALSO OCCURRED IN PREVIOUS YEARS
MONTHLY PRECIPITATION EXTREMES: WETTEST.. 6.74" 1969
DRIEST....0.42" 1965
SNOWIEST..24.2" 1966
NORMALS BASED ON PERIOD 1991-2020
MONTHLY NORMALS: MAX 46.5 MIN 29.0 AVG 37.7 PCP 3.30" SNW 2.8"
KEY...
DY=DAY OF MONTH
NMX=NORMAL DAILY MAX(F)
NMN=NORMAL DAILY MIN(F)
NPCP=NORMAL DAILY PRECIP (IN)
RMX=DAILY RECORD HIGH MAX(F)
LOMX=DAILY RECORD LOWEST MAX(F)
RMN=DAILY RECORD LOW MIN(F)
HIMN=DAILY RECORD HIGHEST MIN(F)
MAXPCP=DAILY MAX PRECIP (IN)
MXSNO=DAILY MAX SNOWFALL (IN)
CALENDAR DAY MEANS/EXTREMES ARE BASED UPON LOCAL STANDARD TIME (LST)
MIDNIGHT-TO-MIDNIGHT.
Last updated: Sun Dec 25 16:00:04 GMT 2022
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