048
CDUS43 KLOT 120634
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT TUE AUG 12 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 11 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 89 4:42 PM 98 1874 83 6 80
1941
MINIMUM 72 9:45 PM 47 1982 66 6 58
AVERAGE 81 74 7 69
PRECIPITATION (IN)
YESTERDAY 0.31 3.70 1923 0.14 0.17 0.00
MONTH TO DATE 0.37 1.52 -1.15 0.85
SINCE JUN 1 8.29 9.33 -1.04 9.84
SINCE JAN 1 17.79 23.98 -6.19 25.11
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 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
YESTERDAY 16 10 6 4
MONTH TO DATE 129 110 19 105
SINCE JUN 1 818 635 183 699
SINCE JAN 1 852 705 147 779
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 8.8
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 9:00 PM
LOWEST 45 4:00 PM
AVERAGE 70
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 101 1918
MINIMUM TEMPERATURE (F) 66 47 1982
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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