225
CDUS43 KLOT 212137
CLIPWK
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT SUN SEP 21 2025
...............................
...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 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 83 2:59 PM 93 2017 74 9 92
MINIMUM 67 5:32 AM 40 2006 54 13 56
AVERAGE 75 64 11 74
PRECIPITATION (IN)
TODAY T 0.46 2016 0.11 -0.11 0.00
MONTH TO DATE 1.55 2.14 -0.59 0.07
SINCE SEP 1 1.55 2.14 -0.59 0.07
SINCE JAN 1 19.32 24.48 -5.16 26.46
DEGREE DAYS
HEATING
TODAY 0 4 -4 0
MONTH TO DATE 34 37 -3 16
SINCE SEP 1 34 37 -3 16
SINCE JUL 1 42 44 -2 21
COOLING
TODAY 10 2 8 9
MONTH TO DATE 87 90 -3 112
SINCE SEP 1 87 90 -3 112
SINCE JAN 1 1011 904 107 981
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 5.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 3:00 AM
LOWEST 56 3:00 PM
AVERAGE 76
......................................................
THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 96 2017
MINIMUM TEMPERATURE (F) 54 39 1999
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 6:38 AM CDT SUNSET 6:50 PM CDT
SEPTEMBER 22 2025.....SUNRISE 6:39 AM CDT SUNSET 6:48 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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