566
CDUS43 KLOT 090645
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1245 AM CST TUE DEC 09 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 8 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 27 4:11 PM 64 1946 40 -13 57
MINIMUM 18 8:21 AM 0 1958 27 -9 40
AVERAGE 23 34 -11 49
PRECIPITATION (IN)
YESTERDAY T 0.77 1980 0.06 -0.06 T
MONTH TO DATE 0.33 0.52 -0.19 T
SINCE DEC 1 0.33 0.52 -0.19 T
SINCE JAN 1 30.02 33.15 -3.13 35.19
DEGREE DAYS
HEATING
YESTERDAY 42 32 10 16
MONTH TO DATE 335 243 92 292
SINCE DEC 1 335 243 92 292
SINCE JUL 1 1244 1327 -83 998
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 15 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 7.3
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 6:00 AM
LOWEST 50 2:00 PM
AVERAGE 65
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THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 40 61 1946
MINIMUM TEMPERATURE (F) 27 -8 1958
SUNRISE AND SUNSET
DECEMBER 9 2025......SUNRISE 7:07 AM CST SUNSET 4:20 PM CST
DECEMBER 10 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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