836
CDUS43 KLOT 080650
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1250 AM CST MON DEC 08 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 7 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 30 2:32 AM 64 1916 39 -9 50
MINIMUM 16 11:46 PM -6 1882 27 -11 24
AVERAGE 23 33 -10 37
PRECIPITATION (IN)
YESTERDAY 0.35 1.12 1980 0.08 0.27 0.00
MONTH TO DATE 0.52 0.54 -0.02 T
SINCE DEC 1 0.52 0.54 -0.02 T
SINCE JAN 1 28.24 36.29 -8.05 32.99
SNOWFALL (IN)
YESTERDAY 4.6 6.9 1978 0.2 4.4 0.0
MONTH TO DATE 6.7 1.5 5.2 0.2
SINCE DEC 1 6.7 1.5 5.2 0.2
SINCE JUL 1 17.1 3.5 13.6 3.1
SNOW DEPTH 8
DEGREE DAYS
HEATING
YESTERDAY 42 32 10 28
MONTH TO DATE 301 218 83 279
SINCE DEC 1 301 218 83 279
SINCE JUL 1 1270 1369 -99 1046
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 21 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 11.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY SNOW
SNOW
LIGHT SNOW
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 2:00 AM
LOWEST 54 4:00 PM
AVERAGE 75
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 39 64 1946
MINIMUM TEMPERATURE (F) 26 -7 1882
SUNRISE AND SUNSET
DECEMBER 8 2025......SUNRISE 7:07 AM CST SUNSET 4:20 PM CST
DECEMBER 9 2025......SUNRISE 7:08 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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