A Pacific storm system will track through the Northwest U.S. today then across the Northern Plains, Upper Midwest and Great Lakes Thursday into Friday. Areas of moderate to heavy snow and gusty to high winds are expected. In the eastern U.S., a storm system will continue tracking across the region today with widespread showers and thunderstorms. A wintry mix will be possible in the Northeast U.S. Read More >
Normals, Means & Extremes
December -
Values in red represent the extremes for the month.
|
D |
Temperature |
Degree Days |
Precipitation |
D |
|||||||||||
|
|
High Max. |
Low Max. |
High Min. |
Low Min. |
Heating |
Normal |
Cooling |
Normal |
Daily |
Normal |
Record |
||||
|
Max. |
Min. |
Avg. |
|||||||||||||
|
1 |
62 |
41 |
51 |
79 / 1903 |
44 / 1972 |
57 / 1909 |
27 / 2004 |
14 |
333 |
0 |
2424 |
0.02 |
0.81 |
0.45 / 1952 |
1 |
|
2 |
61 |
41 |
51 |
87 / 1915 |
42 / 1972 |
58 / 2012 |
28 / 2004 |
14 |
347 |
0 |
2424 |
0.03 |
0.84 |
0.63 / 2005 |
2 |
|
3 |
61 |
41 |
51 |
83 / 1979 |
45 / 1972 |
53 / 2014 |
27 / 1908 |
14 |
361 |
0 |
2424 |
0.03 |
0.87 |
0.60 / 1941 |
3 |
|
4 |
61 |
41 |
51 |
82 / 1939 |
44 / 1965 |
54 / 1938 |
28 / 2004 |
14 |
375 |
0 |
2424 |
0.03 |
0.90 |
0.97 / 1915 |
4 |
|
5 |
61 |
40 |
50 |
80 / 1918 |
43 / 1965 |
55 / 1966 |
23 / 1903 |
15 |
390 |
0 |
2424 |
0.03 |
0.93 |
0.65 / 1894 |
5 |
|
6 |
60 |
40 |
50 |
80 / 2023 |
42 / 1965 |
60 / 1918 |
22 / 1903 |
15 |
405 |
0 |
2424 |
0.02 |
0.95 |
0.82 / 1946 |
6 |
|
7 |
60 |
40 |
50 |
76 / 1907 |
41 / 1965 |
53 / 1950 |
24 / 1912 |
15 |
419 |
0 |
2424 |
0.03 |
0.98 |
0.98 / 1992 |
7 |
|
8 |
60 |
40 |
50 |
83 / 1915 |
43 / 1965 |
56 / 1909 |
24 / 1903 |
15 |
435 |
0 |
2424 |
0.03 |
1.01 |
1.02 / 1931 |
8 |
|
9 |
60 |
40 |
50 |
74 / 1979 |
36 / 1972 |
54 / 2016 |
24 / 1923 |
15 |
450 |
0 |
2424 |
0.04 |
1.05 |
0.40 / 1996 |
9 |
|
10 |
59 |
40 |
50 |
85 / 1912 |
41 / 1972 |
53 / 1937 |
24 / 1923 |
16 |
465 |
0 |
2424 |
0.03 |
1.08 |
0.75 / 2009 |
10 |
|
11 |
59 |
40 |
49 |
81 / 1912 |
35 / 1932 |
58 / 1937 |
24 / 1923 |
16 |
481 |
0 |
2424 |
0.03 |
1.11 |
0.50 / 1907 |
11 |
|
12 |
59 |
40 |
49 |
75 / 1913 |
43 / 1932 |
53 / 1893 |
20 / 1901 |
16 |
497 |
0 |
2424 |
0.04 |
1.15 |
1.12 / 2014 |
12 |
|
13 |
59 |
39 |
49 |
79 / 1998 |
41 / 1972 |
54 / 1933 |
20 / 1901 |
16 |
513 |
0 |
2424 |
0.03 |
1.18 |
0.85 / 1995 |
13 |
|
14 |
59 |
39 |
49 |
80 / 1958 |
36 / 1972 |
53 / 1950 |
20 / 1901 |
16 |
529 |
0 |
2424 |
0.03 |
1.21 |
0.97 / 2021 |
14 |
|
15 |
59 |
39 |
49 |
79 / 1958 |
40 / 1992 |
51 / 2006 |
19 / 1901 |
16 |
545 |
0 |
2424 |
0.04 |
1.25 |
0.58 / 1934 |
15 |
|
16 |
58 |
39 |
49 |
77 / 1976 |
42 / 1963 |
55 / 1893 |
22 / 1901 |
16 |
561 |
0 |
2424 |
0.04 |
1.29 |
0.64 / 1957 |
16 |
|
17 |
58 |
39 |
49 |
75 / 1977 |
41 / 1985 |
54 / 1977 |
23 / 1901 |
16 |
577 |
0 |
2424 |
0.03 |
1.32 |
0.36 / 2002 |
17 |
|
18 |
58 |
39 |
49 |
75 / 1979 |
35 / 1908 |
53 / 1938 |
23 / 1908 |
16 |
593 |
0 |
2424 |
0.04 |
1.36 |
1.37 / 2010 |
18 |
|
19 |
58 |
39 |
49 |
80 / 1981 |
39 / 1965 |
55 / 2010 |
23 / 1924 |
16 |
610 |
0 |
2424 |
0.04 |
1.40 |
1.53 / 2010 |
19 |
|
20 |
58 |
39 |
49 |
76 / 1944 |
35 / 1908 |
54 / 1964 |
26 / 1928 |
17 |
626 |
0 |
2424 |
0.03 |
1.43 |
0.86 / 1943 |
20 |
|
21 |
58 |
39 |
49 |
78 / 1919 |
36 / 1998 |
59 / 1977 |
23 / 1905 |
17 |
643 |
0 |
2424 |
0.04 |
1.47 |
0.84 / 1938 |
21 |
|
22 |
58 |
39 |
48 |
76 / 2005 |
34 / 1998 |
56 / 1977 |
20 / 1990 |
17 |
659 |
0 |
2424 |
0.04 |
1.51 |
0.74 / 1893 |
22 |
|
23 |
58 |
39 |
48 |
73 / 1964 |
36 / 1928 |
63 / 1955 |
14 / 1905 |
17 |
676 |
0 |
2424 |
0.04 |
1.55 |
0.91 / 2016 |
23 |
|
24 |
58 |
39 |
48 |
75 / 1964 |
39 / 1993 |
57 / 1979 |
13 / 1905 |
17 |
693 |
0 |
2424 |
0.05 |
1.60 |
0.75 / 1994 |
24 |
|
25 |
58 |
39 |
48 |
76 / 1902 |
32 / 1918 |
56 / 1977 |
21 / 1899 |
17 |
709 |
0 |
2424 |
0.04 |
1.64 |
0.92 / 2003 |
25 |
|
26 |
58 |
39 |
48 |
71 / 1999 |
35 / 1918 |
56 / 1977 |
20 / 1905 |
17 |
726 |
0 |
2424 |
0.04 |
1.68 |
0.62 / 2019 |
26 |
|
27 |
58 |
39 |
48 |
72 / 1991 |
39 / 1933 |
56 / 1977 |
23 / 1930 |
17 |
742 |
0 |
2424 |
0.04 |
1.72 |
1.02 / 1936 |
27 |
|
28 |
57 |
39 |
48 |
73 / 1977 |
40 / 1908 |
58 / 1977 |
24 / 1930 |
17 |
759 |
0 |
2424 |
0.04 |
1.76 |
0.79 / 1977 |
28 |
|
29 |
57 |
39 |
48 |
75 / 2023 |
40 / 1929 |
57 / 1977 |
22 / 1929 |
17 |
776 |
0 |
2424 |
0.05 |
1.81 |
0.93 / 1965 |
29 |
|
30 |
57 |
39 |
48 |
74 / 1904 |
44 / 2014 |
53 / 1981 |
15 / 1905 |
17 |
792 |
0 |
2424 |
0.04 |
1.85 |
0.44 / 2016 |
30 |
|
31 |
57 |
40 |
48 |
73 / 1913 |
39 / 1919 |
53 / 1981 |
19 / 1929 |
17 |
809 |
0 |
2424 |
0.04 |
1.89 |
1.00 / 1906 |
31 |
|
Avg. |
58.8 |
39.6 |
49.2 |
|
490 |
|
0 |
|
1.10 |
|
Avg. |
||||
|
D |
Max. |
Min. |
Avg. |
High Max. |
Low Max. |
High Min. |
Low Min. |
Heating |
Normal |
Cooling |
Normal |
Daily |
Normal |
Record |
D |
|
Normal |
|||||||||||||||
|
Temperature |
Degree Days |
Precipitation |
|||||||||||||
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