391
CDUS43 KLOT 110702
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
102 AM CST THU DEC 11 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 10 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 40 4:22 AM 61 2021 39 1 45
MINIMUM 27 11:58 PM -8 1978 27 0 31
AVERAGE 34 33 1 38
PRECIPITATION (IN)
YESTERDAY 0.02 2.18 1971 0.06 -0.04 0.00
MONTH TO DATE 0.43 0.64 -0.21 T
SINCE DEC 1 0.43 0.64 -0.21 T
SINCE JAN 1 30.12 33.27 -3.15 35.19
DEGREE DAYS
HEATING
YESTERDAY 31 32 -1 27
MONTH TO DATE 401 307 94 334
SINCE DEC 1 401 307 94 334
SINCE JUL 1 1310 1391 -81 1040
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1410 1112 298 1384
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 16.8
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 9:00 AM
LOWEST 63 11:00 PM
AVERAGE 80
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 39 61 1949
MINIMUM TEMPERATURE (F) 26 -5 1972
SUNRISE AND SUNSET
DECEMBER 11 2025......SUNRISE 7:08 AM CST SUNSET 4:20 PM CST
DECEMBER 12 2025......SUNRISE 7:09 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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