454
CDUS43 KLOT 110633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT MON AUG 11 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 10 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 11:14 AM 99 1944 83 6 75
MINIMUM 77 5:37 AM 49 1972 66 11 56
1982
AVERAGE 83 75 8 66
PRECIPITATION (IN)
YESTERDAY 0.06 1.87 1979 0.13 -0.07 0.00
MONTH TO DATE 0.06 1.38 -1.32 0.85
SINCE JUN 1 7.98 9.19 -1.21 9.84
SINCE JAN 1 17.48 23.84 -6.36 25.11
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 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 18 10 8 1
MONTH TO DATE 113 100 13 101
SINCE JUN 1 802 625 177 695
SINCE JAN 1 836 695 141 775
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 9.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 12:00 PM
LOWEST 54 11:00 AM
AVERAGE 68
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 98 1874
1941
MINIMUM TEMPERATURE (F) 66 47 1982
SUNRISE AND SUNSET
AUGUST 11 2025........SUNRISE 5:56 AM CDT SUNSET 7:57 PM CDT
AUGUST 12 2025........SUNRISE 5:57 AM CDT SUNSET 7:56 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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