135
CDUS43 KLOT 100714
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
114 AM CST WED DEC 10 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 9 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 38 11:59 PM 62 1879 38 0 53
MINIMUM 21 2:22 AM -14 1876 26 -5 42
AVERAGE 30 32 -2 48
PRECIPITATION (IN)
YESTERDAY 0.13 1.47 2008 0.08 0.05 T
MONTH TO DATE 0.65 0.69 -0.04 T
SINCE DEC 1 0.65 0.69 -0.04 T
SINCE JAN 1 28.37 36.44 -8.07 32.99
SNOWFALL (IN)
YESTERDAY 0.1 5.1 1931 0.2 -0.1 0.0
MONTH TO DATE 6.8 1.9 4.9 0.2
SINCE DEC 1 6.8 1.9 4.9 0.2
SINCE JUL 1 17.2 3.9 13.3 3.1
SNOW DEPTH 8
DEGREE DAYS
HEATING
YESTERDAY 35 33 2 17
MONTH TO DATE 379 283 96 314
SINCE DEC 1 379 283 96 314
SINCE JUL 1 1348 1434 -86 1081
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 25 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 13.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 9:00 PM
LOWEST 68 12:00 AM
AVERAGE 79
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 38 62 1879
MINIMUM TEMPERATURE (F) 26 -8 1919
1978
SUNRISE AND SUNSET
DECEMBER 10 2025......SUNRISE 7:09 AM CST SUNSET 4:20 PM CST
DECEMBER 11 2025......SUNRISE 7:10 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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