Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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CDUS43 KLOT 152239
CLILOT
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
439 PM CST MON DEC 15 2025
...................................
...THE ROMEOVILLE WFO CLIMATE SUMMARY FOR DECEMBER 15 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1992 TO 2025
WEATHER ITEM OBSERVED RECORD YEAR NORMAL DEPARTURE LAST
VALUE VALUE VALUE FROM YEAR
NORMAL
............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 21 64 2021 37 -16 43
MINIMUM 0 -2 2016 22 -22 39
AVERAGE 11 30 -19 41
PRECIPITATION (IN)
TODAY 0.00 0.96 1992 0.07 -0.07 0.04
MONTH TO DATE 0.45 1.05 -0.60 0.53
SINCE DEC 1 0.45 1.05 -0.60 0.53
SINCE JAN 1 29.65 40.04 -10.39 40.35
SNOWFALL (IN)
TODAY 0.0 2.7 2007 0.3 -0.3 0.0
MONTH TO DATE 4.5 3.0 1.5 0.1
SINCE DEC 1 4.5 3.0 1.5 0.1
SINCE JUL 1 15.1 4.3 10.8 2.3
SNOW DEPTH 2
DEGREE DAYS
HEATING
TODAY 54 36 18 24
MONTH TO DATE 684 500 184 571
SINCE DEC 1 684 500 184 571
SINCE JUL 1 1761 1692 69 1433
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1077 947 130 1040
............................................................
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 37 64 2021
MINIMUM TEMPERATURE (F) 22 5 2009
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 7:12 AM CST SUNSET 4:23 PM CST
DECEMBER 16 2025......SUNRISE 7:13 AM CST SUNSET 4:23 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$