390
CDUS43 KLOT 110702
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
102 AM CST THU DEC 11 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 10 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 40 3:28 AM 62 1879 38 2 42
MINIMUM 27 11:59 PM -8 1919 26 1 30
1978
AVERAGE 34 32 2 36
PRECIPITATION (IN)
YESTERDAY 0.07 2.18 1971 0.07 0.00 T
MONTH TO DATE 0.72 0.76 -0.04 T
SINCE DEC 1 0.72 0.76 -0.04 T
SINCE JAN 1 28.44 36.51 -8.07 32.99
SNOWFALL (IN)
YESTERDAY 0.1 10.9 1934 0.3 -0.2 T
MONTH TO DATE 6.9 2.2 4.7 0.2
SINCE DEC 1 6.9 2.2 4.7 0.2
SINCE JUL 1 17.3 4.2 13.1 3.1
SNOW DEPTH 3
DEGREE DAYS
HEATING
YESTERDAY 31 33 -2 29
MONTH TO DATE 410 316 94 343
SINCE DEC 1 410 316 94 343
SINCE JUL 1 1379 1467 -88 1110
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 NW (330)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 15.4
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 7:00 AM
LOWEST 60 10:00 PM
AVERAGE 76
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 38 61 1949
MINIMUM TEMPERATURE (F) 26 -5 1972
SUNRISE AND SUNSET
DECEMBER 11 2025......SUNRISE 7:10 AM CST SUNSET 4:20 PM CST
DECEMBER 12 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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