745
CDUS43 KLOT 290636
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST MON DEC 29 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 28 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 56 3:14 PM 69 1984 34 22 51
MINIMUM 22 11:59 PM -13 1924 22 0 42
AVERAGE 39 28 11 47
PRECIPITATION (IN)
YESTERDAY 0.97 1.47 2015 0.07 0.90 T
MONTH TO DATE 1.91 1.92 -0.01 0.89
SINCE DEC 1 1.91 1.92 -0.01 0.89
SINCE JAN 1 29.63 37.67 -8.04 33.88
SNOWFALL (IN)
YESTERDAY T 8.0 1987 0.3 -0.3 0.0
MONTH TO DATE 7.0 6.7 0.3 2.4
SINCE DEC 1 7.0 6.7 0.3 2.4
SINCE JUL 1 17.4 8.7 8.7 5.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 26 37 -11 18
MONTH TO DATE 1040 955 85 934
SINCE DEC 1 1040 955 85 934
SINCE JUL 1 2009 2106 -97 1701
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 32 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 10.0
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
LIGHT SNOW
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 74 11:00 PM
AVERAGE 87
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 63 1984
MINIMUM TEMPERATURE (F) 21 -15 1880
SUNRISE AND SUNSET
DECEMBER 29 2025......SUNRISE 7:19 AM CST SUNSET 4:29 PM CST
DECEMBER 30 2025......SUNRISE 7:19 AM CST SUNSET 4:29 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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