965
CDUS43 KLOT 122138
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
438 PM CDT TUE AUG 12 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 12 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 85 2:21 PM 101 1918 83 2 82
MINIMUM 72 6:42 AM 47 1982 66 6 61
AVERAGE 79 74 5 72
PRECIPITATION (IN)
TODAY 0.01 2.03 1908 0.14 -0.13 0.00
MONTH TO DATE 0.38 1.66 -1.28 0.85
SINCE JUN 1 8.30 9.47 -1.17 9.84
SINCE JAN 1 17.80 24.12 -6.32 25.11
SNOWFALL (IN)
TODAY 0.0 T 1989 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 T
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 13 33 -20 6
SINCE JUL 1 0 2 -2 0
COOLING
TODAY 14 10 4 7
MONTH TO DATE 143 120 23 112
SINCE JUN 1 832 645 187 706
SINCE JAN 1 866 715 151 786
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 6.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 4:00 AM
LOWEST 65 11:00 AM
AVERAGE 80
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 98 1944
MINIMUM TEMPERATURE (F) 66 51 1982
2004
SUNRISE AND SUNSET
AUGUST 12 2025........SUNRISE 5:57 AM CDT SUNSET 7:56 PM CDT
AUGUST 13 2025........SUNRISE 5:58 AM CDT SUNSET 7:54 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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