858
CDUS43 KLOT 010635
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST THU JAN 01 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 31 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 35 5:58 PM 68 1875 33 2 42
MINIMUM 16 11:59 PM -10 1967 21 -5 34
AVERAGE 26 27 -1 38
PRECIPITATION (IN)
YESTERDAY 0.04 0.89 1978 0.07 -0.03 0.57
MONTH TO DATE 2.07 2.11 -0.04 1.93
SINCE DEC 1 2.07 2.11 -0.04 1.93
SINCE JAN 1 29.79 37.86 -8.07 34.92
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 39 38 1 27
MONTH TO DATE 1172 1069 103 1013
SINCE DEC 1 1172 1069 103 1013
SINCE JUL 1 2141 2220 -79 1780
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 25 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 12.3
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
SLEET
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 1:00 AM
LOWEST 62 11:00 PM
AVERAGE 77
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THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 65 1876
MINIMUM TEMPERATURE (F) 21 -10 1969
SUNRISE AND SUNSET
JANUARY 1 2026.......SUNRISE 7:20 AM CST SUNSET 4:31 PM CST
JANUARY 2 2026.......SUNRISE 7:20 AM CST SUNSET 4:32 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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