794
CDUS43 KLOT 312246
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
446 PM CST WED DEC 31 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 31 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 35 2:30 PM 68 1875 33 2 42
MINIMUM 26 10:08 AM -10 1967 21 5 34
AVERAGE 31 27 4 38
PRECIPITATION (IN)
TODAY 0.02 0.89 1978 0.07 -0.05 0.57
MONTH TO DATE 2.05 2.11 -0.06 1.93
SINCE DEC 1 2.05 2.11 -0.06 1.93
SINCE JAN 1 29.77 37.86 -8.09 34.92
SNOWFALL (IN)
TODAY T 7.6 1978 0.3 -0.3 0.0
MONTH TO DATE 9.5 7.6 1.9 2.4
SINCE DEC 1 9.5 7.6 1.9 2.4
SINCE JUL 1 19.9 9.6 10.3 5.3
SNOW DEPTH 2
DEGREE DAYS
HEATING
TODAY 34 38 -4 27
MONTH TO DATE 1167 1069 98 1013
SINCE DEC 1 1167 1069 98 1013
SINCE JUL 1 2136 2220 -84 1780
COOLING
TODAY 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 20 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 1:00 AM
LOWEST 75 10:00 AM
AVERAGE 84
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 65 1876
MINIMUM TEMPERATURE (F) 21 -10 1969
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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page