794
CDUS43 KLOT 040636
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST THU DEC 04 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 3 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 5:34 PM 71 1970 41 -11 31
MINIMUM 16 11:53 PM -5 1940 28 -12 19
AVERAGE 23 34 -11 25
PRECIPITATION (IN)
YESTERDAY 0.03 1.12 1873 0.07 -0.04 0.00
MONTH TO DATE 0.16 0.23 -0.07 0.00
SINCE DEC 1 0.16 0.23 -0.07 0.00
SINCE JAN 1 27.88 35.98 -8.10 32.99
SNOWFALL (IN)
YESTERDAY 0.4 4.0 1893 0.2 0.2 0.0
MONTH TO DATE 1.9 0.6 1.3 0.0
SINCE DEC 1 1.9 0.6 1.3 0.0
SINCE JUL 1 12.3 2.6 9.7 2.9
SNOW DEPTH 6
DEGREE DAYS
HEATING
YESTERDAY 42 31 11 40
MONTH TO DATE 127 91 36 129
SINCE DEC 1 127 91 36 129
SINCE JUL 1 1096 1242 -146 896
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
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WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 11.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 4:00 PM
LOWEST 59 9:00 PM
AVERAGE 76
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 40 66 1998
MINIMUM TEMPERATURE (F) 27 0 1893
SUNRISE AND SUNSET
DECEMBER 4 2025......SUNRISE 7:03 AM CST SUNSET 4:20 PM CST
DECEMBER 5 2025......SUNRISE 7:04 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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