Light to moderate snow will continue into Saturday over the Great Lakes, Central Appalachians, and Northeast. This weekend into next week, a series of atmospheric rivers will bring gusty winds, periods of heavy rain, and mountain snow to northern California and the Pacific Northwest. Colder temperatures are in store for the weekend from the Great Lakes to East Coast. Read More >
April 3 One Day Temperature Change | April 2-4 Ups and Downs
One Day Temperature Change; 5th Largest on Record in Rockford
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
904 PM CDT SUN APR 3 2016 /1004 PM EDT SUN APR 3 2016/
...IMPRESSIVE SINGLE DAY TEMPERATURE CHANGE...
WHILE THE WEATHER IN SPRINGTIME ACROSS THE MIDWEST FEATURES UPS
AND DOWN AND SOME IN QUICK SUCCESSION...THE RATE OF WEATHER
CHANGES EARLY THIS APRIL HAVE BEEN IMPRESSIVE. OF NOTE WERE THE
TEMPERATURES ALONE ON SUNDAY APRIL 3RD. AFTER A CHILLY MORNING BY
APRIL STANDARDS WITH TEMPERATURES IN THE 20S...LATE AFTERNOON
HIGHS REBOUNDED INTO THE 70S. HERE IS HOW THIS SINGLE DAY...OR
DIURNAL...TEMPERATURE CHANGE COMPARES TO PAST EXTREME RANGES.
-----------------------------------------------------------------
ROCKFORD
- WITH A LOW OF 27 AND A HIGH OF 75 ON SUNDAY APRIL 3RD...THERE WAS
A TOTAL DIURNAL RANGE OF 48 DEGREES.
- THIS WAS THE FIFTH LARGEST DIURNAL CHANGE IN THE PERIOD OF RECORD
FOR ROCKFORD /SINCE 1905/.
RANK DATE TEMPERATURE RANGE HIGH LOW
---------------------------------------------------
1. 3/23/1939 52 82 30
2. 4/2/1981 50 79 29
1/18/1996 50 57 7
4. 1/29/2008 49 48 -1
5. 4/3/2016 48 75 27
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CHICAGO
- WITH A LOW OF 26 AND A HIGH OF 71 ON SUNDAY APRIL 3RD...THERE WAS
A TOTAL DIURNAL RANGE OF 45 DEGREES.
- THIS WAS THE LARGEST TEMPERATURE RANGE IN A SINGLE DAY SINCE
JANUARY 29 2008...WHICH HAD A 46 DEGREE RANGE.
- THIS WAS TIED FOR THE 13TH LARGEST CALENDAR DAY TEMPERATURE
CHANGE IN THE PERIOD OF RECORD /SINCE 1871/. THE LARGEST WAS 52
DEGREES ON FEBRUARY 8TH 1900...WHICH SAW A LOW OF 10 AND A HIGH
OF 62.
- THIS WAS THE LARGEST DIURNAL TEMPERATURE RANGE ON AN APRIL DAY
SINCE APRIL 20 1936...WHICH SAW A 47 DEGREE RANGE FROM A LOW OF
35 TO A HIGH OF 82.
------------------------------------------------------------------
THE TEMPERATURE ROLLER COASTER WILL CONTINUE WITH MONDAY SEEING
HIGHS FALL BACK TO THE MID 30S TO MID 40S ACROSS THE AREA...WITH
THE COOLEST VALUES NEAR THE LAKE MICHIGAN SHORE INCLUDING DOWNTOWN
CHICAGO.
$$
MTF
Observed Highs & Lows on April 3rd
MAXIMUM/MINIMUM TEMPERATURE AND PRECIPITATION TABLE
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
710 PM CDT SUN APR 3 2016
High temperature last 18 hours
Low temperature last 18 hours
Precipitation last 24 hours
Snowfall last 24 hours
.BR LOT 0403 C DH19/TAIRZS/TAIRZI/PPDRZZ/SFDRZZ
:Id Location High Low Pcpn Snowfall
ORD: Chicago-O`Hare : 71 / 26 / 0.00 / 0.0
CNII2: Chicago-Northerly Isl: 71 / 31 /
MDW: Chicago-Midway : 72 / 29 / 0.00
LOTI2: NWS Romeoville : 71 / 25 / 0.00 / 0.0
RFD: Rockford Airport : 75 / 27 / 0.00 / 0.0
DPA: Dupage Airport : 72 / 25 / 0.00
UGN: Waukegan Airport : 71 / 24 / 0.00
ARR: Aurora/Sugar Grove : 73 / 26 / 0.00
PWK: Wheeling/CHI Exec : 72 / 27 / 0.00
VPZ: Valparaiso IN : 65 / 25 / 0.00
:
:Unofficial Supplemental AWOS Locations
:
DKB: Dekalb : 73 / 26 /
JOT: Joliet : 74 / 25 /
IKK: Kankakee : 67 / 26 /
IGQ: Lansing : 66 / 26 /
C09: Morris : 73 / 26 /
VYS: Peru : 75 / 29 /
PNT: Pontiac : 74 / 28 /
RZL: Rensselaer IN : 63 / 28 /
RPJ: Rochelle : 73 / 26 /
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
927 PM CDT MON APR 4 2016 /1027 PM EDT MON APR 4 2016/
...RECENT SHARP DAY-TO-DAY TEMPERATURE CHANGES ARE QUITE RARE...
TEMPERATURES VARIED SIGNIFICANTLY FROM ONE DAY TO THE NEXT ACROSS
MOST OF NORTHERN ILLINOIS AND NORTHWEST INDIANA DURING THE THREE
DAY STRETCH FROM SATURDAY APRIL 2 THROUGH MONDAY APRIL 4. CHICAGO
AND ROCKFORD BOTH SAW A 30 DEGREE PLUS WARM UP FROM APRIL 2 TO
APRIL 3...AND THEN A 30 DEGREE PLUS COOL DOWN FROM APRIL 3 TO
APRIL 4. WHILE WE EXPECT SOME DRASTIC WARM UPS AND COOL DOWNS IN
THE MIDWEST...THIS RAPID SUCCESSION OF BOTH IS EXCEPTIONALLY RARE.
-----------------------------------------------------------------
ROCKFORD
HIGH DIFFERENCE FROM PREVIOUS DAY
SAT APRIL 2 2016 41
SUN APRIL 3 2016 75 +34
MON APRIL 4 2016 42 -33
THERE HAS ONLY BEEN ONE OTHER INSTANCE DATING BACK TO 1905 WITH
A 30 DEGREE PLUS TEMPERATURE CHANGE IN BACK-TO-BACK-TO-BACK DAYS.
THAT WAS DURING FEBRUARY 2-4 1970. HERE IS A LOOK AT THE HIGHS
DURING THAT STRETCH:
HIGH DIFFERENCE FROM PREVIOUS DAY
FEBRUARY 2 1970 36
FEBRUARY 3 1970 -3 -39
FEBRUARY 4 1970 32 +35
THERE HAVE BEEN SOME OTHER CLOSE INSTANCES SUCH AS JANUARY 18-20
1996 WHICH SAW HIGHS OF 57...7...AND 20 IN THREE CONSECUTIVE DAYS.
ALSO APRIL 1-3 1978 HAD HIGHS OF 64...36...AND 69.
-----------------------------------------------------------------
CHICAGO
HIGH DIFFERENCE FROM PREVIOUS DAY
SAT APRIL 2 2016 40
SUN APRIL 3 2016 71 +31
MON APRIL 4 2016 38 -33
SINCE 1871 THERE HAVE ONLY BEEN THREE OTHER INSTANCES WITH A 30
DEGREE PLUS TEMPERATURE CHANGE IN BACK-TO-BACK-TO-BACK DAYS. HERE
ARE THOSE STRETCHES:
HIGH DIFFERENCE FROM PREVIOUS DAY
FEBRUARY 3 1875 45
FEBRUARY 4 1875 5 -40
FEBRUARY 5 1875 35 +30
*HIGH DIFFERENCE FROM PREVIOUS DAY
MARCH 27 1895 73
MARCH 28 1895 32 -41
MARCH 29 1895 80 +48
HIGH DIFFERENCE FROM PREVIOUS DAY
FEBRUARY 2 1970 40
FEBRUARY 3 1970 2 -38
FEBRUARY 4 1970 36 +34
* = SOME OF THIS DATA FOR MARCH 1895 MAY HAVE ERRORS.
ONLY THE FINAL OCCURRENCE WAS DURING THE PERIOD WHEN THE OFFICIAL
CHICAGO OBSERVING SITE WAS NOT LOCATED IN DOWNTOWN CHICAGO. FROM
1942 TO 1980 THE OFFICIAL MEASUREMENTS WERE AT CHICAGO MIDWAY
INTERNATIONAL AIRPORT...AND FROM 1980 TO PRESENT IT HAS BEEN AT
CHICAGO OHARE INTERNATIONAL AIRPORT.
$$
MTF
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