545
CDUS43 KLOT 100634
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT SUN AUG 10 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 9 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 95 2:00 PM 97 1913 83 12 72
MINIMUM 76 5:11 AM 51 1972 66 10 60
AVERAGE 86 75 11 66
PRECIPITATION (IN)
YESTERDAY 0.00 1.60 1952 0.14 -0.14 0.00
MONTH TO DATE 0.00 1.25 -1.25 0.85
SINCE JUN 1 7.92 9.06 -1.14 9.84
SINCE JAN 1 17.42 23.71 -6.29 25.11
SNOWFALL (IN)
YESTERDAY 0.0 T 1954 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 21 10 11 1
MONTH TO DATE 95 90 5 100
SINCE JUN 1 784 615 169 694
SINCE JAN 1 818 685 133 774
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 11.9
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74 5:00 AM
LOWEST 46 2:00 PM
AVERAGE 60
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 99 1944
MINIMUM TEMPERATURE (F) 66 49 1972
1982
SUNRISE AND SUNSET
AUGUST 10 2025........SUNRISE 5:55 AM CDT SUNSET 7:58 PM CDT
AUGUST 11 2025........SUNRISE 5:56 AM CDT SUNSET 7:57 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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