Climatological Report (Daily)
Issued by NWS
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867
CDUS43 KLOT 010633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT FRI AUG 01 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 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 76 1:25 PM 99 1945 84 -8 92
2006
MINIMUM 64 11:59 PM 51 1984 67 -3 72
AVERAGE 70 75 -5 82
PRECIPITATION (IN)
YESTERDAY 0.01 1.29 1888 0.13 -0.12 0.00
MONTH TO DATE 4.29 3.71 0.58 5.89
SINCE JUN 1 7.92 7.81 0.11 8.99
SINCE JAN 1 17.42 22.46 -5.04 24.26
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 31 -18 6
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 5 10 -5 17
MONTH TO DATE 393 326 67 316
SINCE JUN 1 689 525 164 594
SINCE JAN 1 723 595 128 674
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 16.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 12:00 AM
LOWEST 48 1:00 PM
AVERAGE 69
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 100 1988
MINIMUM TEMPERATURE (F) 67 51 1990
SUNRISE AND SUNSET
AUGUST 1 2025........SUNRISE 5:45 AM CDT SUNSET 8:10 PM CDT
AUGUST 2 2025........SUNRISE 5:46 AM CDT SUNSET 8:09 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$