324
CDUS43 KLOT 180635
CLILOT
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST THU DEC 18 2025
...............................
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR DECEMBER 17 2025
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)
YESTERDAY
MAXIMUM 42 56 2006 36 6 35
MINIMUM 28 -4 2000 22 6 29
AVERAGE 35 29 6 32
PRECIPITATION (IN)
YESTERDAY 0.00 0.14 2001 0.06 -0.06 0.00
MONTH TO DATE 0.45 1.17 -0.72 0.55
SINCE DEC 1 0.45 1.17 -0.72 0.55
SINCE JAN 1 29.65 40.16 -10.51 40.37
SNOWFALL (IN)
YESTERDAY 0.0 1.2 2016 0.3 -0.3 0.0
MONTH TO DATE 4.5 3.5 1.0 0.1
SINCE DEC 1 4.5 3.5 1.0 0.1
SINCE JUL 1 15.1 4.8 10.3 2.3
SNOW DEPTH 1
DEGREE DAYS
HEATING
YESTERDAY 30 36 -6 33
MONTH TO DATE 753 572 181 625
SINCE DEC 1 753 572 181 625
SINCE JUL 1 1830 1764 66 1487
COOLING
YESTERDAY 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 TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 55 2002
MINIMUM TEMPERATURE (F) 21 -12 2016
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 7:14 AM CST SUNSET 4:24 PM CST
DECEMBER 19 2025......SUNRISE 7:15 AM CST SUNSET 4:24 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page