023
CDUS43 KLOT 180640
CLIPWK
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT THU SEP 18 2025
...............................
...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 2025...
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)
YESTERDAY
MAXIMUM 83 2:03 PM 92 2018 75 8 83
MINIMUM 58 5:26 AM 45 1999 56 2 57
2014
AVERAGE 71 66 5 70
PRECIPITATION (IN)
YESTERDAY 0.00 1.45 2023 0.09 -0.09 0.00
MONTH TO DATE 1.40 1.73 -0.33 0.00
SINCE SEP 1 1.40 1.73 -0.33 0.00
SINCE JAN 1 19.17 24.07 -4.90 26.39
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 34 24 10 16
SINCE SEP 1 34 24 10 16
SINCE JUL 1 42 31 11 21
COOLING
YESTERDAY 6 3 3 5
MONTH TO DATE 52 79 -27 76
SINCE SEP 1 52 79 -27 76
SINCE JAN 1 976 893 83 945
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WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 2.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 5:00 AM
LOWEST 44 2:00 PM
AVERAGE 71
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THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 89 2007
MINIMUM TEMPERATURE (F) 55 42 2012
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 6:35 AM CDT SUNSET 6:55 PM CDT
SEPTEMBER 19 2025.....SUNRISE 6:36 AM CDT SUNSET 6:54 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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