944
CDUS43 KLOT 070645
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1245 AM CST SUN DEC 07 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 6 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 32 8:10 PM 65 1951 39 -7 32
1980
MINIMUM 26 6:54 AM 0 1885 27 -1 15
1972
2007
AVERAGE 29 33 -4 24
PRECIPITATION (IN)
YESTERDAY 0.01 1.12 1998 0.07 -0.06 0.00
MONTH TO DATE 0.17 0.46 -0.29 T
SINCE DEC 1 0.17 0.46 -0.29 T
SINCE JAN 1 27.89 36.21 -8.32 32.99
SNOWFALL (IN)
YESTERDAY 0.2 5.6 1950 0.2 0.0 0.0
MONTH TO DATE 2.1 1.3 0.8 0.2
SINCE DEC 1 2.1 1.3 0.8 0.2
SINCE JUL 1 12.5 3.3 9.2 3.1
SNOW DEPTH 4
DEGREE DAYS
HEATING
YESTERDAY 36 32 4 41
MONTH TO DATE 259 186 73 251
SINCE DEC 1 259 186 73 251
SINCE JUL 1 1228 1337 -109 1018
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1215 1003 212 1212
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 11:00 PM
LOWEST 66 2:00 PM
AVERAGE 77
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 39 64 1916
MINIMUM TEMPERATURE (F) 27 -6 1882
SUNRISE AND SUNSET
DECEMBER 7 2025......SUNRISE 7:06 AM CST SUNSET 4:20 PM CST
DECEMBER 8 2025......SUNRISE 7:07 AM CST SUNSET 4:20 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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