342
CDUS43 KLOT 102234
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CST WED DEC 10 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 10 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 40 3:28 AM 62 1879 38 2 42
MINIMUM 30 3:59 PM -8 1919 26 4 30
1978
AVERAGE 35 32 3 36
PRECIPITATION (IN)
TODAY 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)
TODAY 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
TODAY 30 33 -3 29
MONTH TO DATE 409 316 93 343
SINCE DEC 1 409 316 93 343
SINCE JUL 1 1378 1467 -89 1110
COOLING
TODAY 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 17.0
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 7:00 AM
LOWEST 63 4:00 PM
AVERAGE 78
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 38 61 1949
MINIMUM TEMPERATURE (F) 26 -5 1972
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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