Climatological Report (Daily)
Issued by NWS
Issued by NWS
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817
CDUS43 KLOT 312134
CLIPWK
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT SUN AUG 31 2025
...................................
...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR AUGUST 31 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1996 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 75 2:45 PM 94 2012 80 -5 84
MINIMUM 50 4:52 AM 47 2009 62 -12 61
AVERAGE 63 71 -8 73
PRECIPITATION (IN)
TODAY 0.00 0.17 2019 0.13 -0.13 0.00
MONTH TO DATE 3.26 3.70 -0.44 1.83
SINCE JUN 1 10.00 10.82 -0.82 12.10
SINCE JAN 1 17.77 22.34 -4.57 26.39
DEGREE DAYS
HEATING
TODAY 2 0 2 0
MONTH TO DATE 8 0 8 2
SINCE JUN 1 29 40 -11 16
SINCE JUL 1 8 3 5 5
COOLING
TODAY 0 6 -6 8
MONTH TO DATE 271 263 8 280
SINCE JUN 1 903 754 149 832
SINCE JAN 1 924 814 110 869
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 2.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 5:00 AM
LOWEST 50 11:00 AM
AVERAGE 73
..........................................................
THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 94 2000
2011
MINIMUM TEMPERATURE (F) 62 46 2009
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:16 AM CDT SUNSET 7:26 PM CDT
SEPTEMBER 1 2025.....SUNRISE 6:17 AM CDT SUNSET 7:25 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$