Climatological Report (Daily)
Issued by NWS
Issued by NWS
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912
CDUS43 KLOT 032134
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT SUN AUG 03 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 3 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 79 2:12 PM 98 1930 84 -5 91
1944
1964
MINIMUM 61 5:35 AM 48 1894 66 -5 73
AVERAGE 70 75 -5 82
PRECIPITATION (IN)
TODAY 0.00 2.10 1915 0.14 -0.14 0.00
MONTH TO DATE 0.00 0.44 -0.44 0.51
SINCE JUN 1 7.92 8.25 -0.33 9.50
SINCE JAN 1 17.42 22.90 -5.48 24.77
SNOWFALL (IN)
TODAY 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
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 5 10 -5 17
MONTH TO DATE 12 30 -18 44
SINCE JUN 1 701 555 146 638
SINCE JAN 1 735 625 110 718
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 6:00 AM
LOWEST 38 2:00 PM
AVERAGE 61
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 100 1947
MINIMUM TEMPERATURE (F) 66 53 1880
1894
1992
SUNRISE AND SUNSET
AUGUST 3 2025........SUNRISE 5:47 AM CDT SUNSET 8:07 PM CDT
AUGUST 4 2025........SUNRISE 5:48 AM CDT SUNSET 8:06 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$