980
CDUS43 KLOT 310636
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST WED DEC 31 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 30 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 25 11:00 PM 61 1884 33 -8 42
MINIMUM 10 MM -7 1909 21 -11 32
AVERAGE 18 27 -9 37
PRECIPITATION (IN)
YESTERDAY 0.08 1.69 1972 0.06 0.02 0.00
MONTH TO DATE 2.03 2.04 -0.01 1.36
SINCE DEC 1 2.03 2.04 -0.01 1.36
SINCE JAN 1 29.75 37.79 -8.04 34.35
SNOWFALL (IN)
YESTERDAY 1.6 5.1 1927 0.3 1.3 0.0
MONTH TO DATE 9.5 7.3 2.2 2.4
SINCE DEC 1 9.5 7.3 2.2 2.4
SINCE JUL 1 19.9 9.3 10.6 5.3
SNOW DEPTH 1
DEGREE DAYS
HEATING
YESTERDAY 47 38 9 28
MONTH TO DATE 1133 1031 102 986
SINCE DEC 1 1133 1031 102 986
SINCE JUL 1 2102 2182 -80 1753
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 16 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 9.8
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 9:00 PM
LOWEST 53 12:00 PM
AVERAGE 73
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 68 1875
MINIMUM TEMPERATURE (F) 21 -10 1967
SUNRISE AND SUNSET
DECEMBER 31 2025......SUNRISE 7:19 AM CST SUNSET 4:30 PM CST
JANUARY 1 2026.......SUNRISE 7:20 AM CST SUNSET 4:31 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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