Climatological Report (Daily)
Issued by NWS
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183
CDUS43 KLOT 160637
CLIPWK
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
137 AM CDT TUE SEP 16 2025
...................................
...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 15 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 80 2:16 PM 89 2017 76 4 88
MINIMUM 60 5:25 AM 39 2007 57 3 62
AVERAGE 70 66 4 75
PRECIPITATION (IN)
YESTERDAY 0.00 0.92 2013 0.10 -0.10 0.00
MONTH TO DATE 1.40 1.54 -0.14 0.00
SINCE SEP 1 1.40 1.54 -0.14 0.00
SINCE JAN 1 19.17 23.88 -4.71 26.39
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 34 19 15 16
SINCE SEP 1 34 19 15 16
SINCE JUL 1 42 26 16 21
COOLING
YESTERDAY 5 4 1 10
MONTH TO DATE 40 73 -33 61
SINCE SEP 1 40 73 -33 61
SINCE JAN 1 964 887 77 930
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 3.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 10:00 PM
LOWEST 54 2:00 PM
AVERAGE 74
..........................................................
THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 89 2017
2024
MINIMUM TEMPERATURE (F) 56 43 2014
SUNRISE AND SUNSET
SEPTEMBER 16 2025.....SUNRISE 6:33 AM CDT SUNSET 6:59 PM CDT
SEPTEMBER 17 2025.....SUNRISE 6:34 AM CDT SUNSET 6:57 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$