


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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213 CDUS43 KLOT 030643 CLIPWK CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 143 AM CDT WED SEP 03 2025 ................................... ...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 2 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 79 2:17 PM 95 2008 80 -1 74 MINIMUM 57 5:22 AM 49 2017 61 -4 57 AVERAGE 68 70 -2 66 PRECIPITATION (IN) YESTERDAY 0.00 1.47 2010 0.11 -0.11 0.00 MONTH TO DATE 0.00 0.23 -0.23 0.00 SINCE SEP 1 0.00 0.23 -0.23 0.00 SINCE JAN 1 17.77 22.57 -4.80 26.39 DEGREE DAYS HEATING YESTERDAY 0 1 -1 0 MONTH TO DATE 0 1 -1 0 SINCE SEP 1 0 1 -1 0 SINCE JUL 1 8 8 0 5 COOLING YESTERDAY 3 6 -3 1 MONTH TO DATE 5 12 -7 3 SINCE SEP 1 5 12 -7 3 SINCE JAN 1 929 826 103 872 ................................................................... WIND (MPH) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SE (120) HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION E (70) AVERAGE WIND SPEED 2.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 5:00 AM LOWEST 47 11:00 AM AVERAGE 70 .......................................................... THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 79 93 2023 MINIMUM TEMPERATURE (F) 61 49 1997 SUNRISE AND SUNSET SEPTEMBER 3 2025.....SUNRISE 6:19 AM CDT SUNSET 7:21 PM CDT SEPTEMBER 4 2025.....SUNRISE 6:21 AM CDT SUNSET 7:20 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$