


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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575 CDUS43 KLOT 310633 CLIPWK CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 133 AM CDT SUN AUG 31 2025 ................................... ...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR AUGUST 30 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 74 12:18 PM 96 2013 80 -6 81 MINIMUM 56 11:59 PM 49 2009 62 -6 67 AVERAGE 65 71 -6 74 PRECIPITATION (IN) YESTERDAY 0.00 0.44 2001 0.13 -0.13 0.31 MONTH TO DATE 3.26 3.57 -0.31 1.83 SINCE JUN 1 10.00 10.69 -0.69 12.10 SINCE JAN 1 17.77 22.21 -4.44 26.39 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 6 0 6 2 SINCE JUN 1 27 40 -13 16 SINCE JUL 1 6 3 3 5 COOLING YESTERDAY 0 7 -7 9 MONTH TO DATE 271 258 13 272 SINCE JUN 1 903 749 154 824 SINCE JAN 1 924 809 115 861 ................................................................... WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (50) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (110) AVERAGE WIND SPEED 3.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 84 11:00 PM LOWEST 51 12:00 PM AVERAGE 68 .......................................................... THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 80 94 2012 MINIMUM TEMPERATURE (F) 62 47 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. $$