


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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844 CDUS43 KLOT 022147 CLIDPA CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 447 PM CDT TUE SEP 02 2025 ................................... ...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 2 2025... VALID TODAY AS OF 0400 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1997 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 80 2:31 PM 95 2008 80 0 76 MINIMUM 52 3:11 AM 43 2017 59 -7 52 AVERAGE 66 69 -3 64 PRECIPITATION (IN) TODAY 0.00 1.14 2010 0.10 -0.10 0.00 MONTH TO DATE 0.00 0.20 -0.20 0.00 SINCE SEP 1 0.00 0.20 -0.20 0.00 SINCE JAN 1 20.53 23.57 -3.04 24.32 DEGREE DAYS HEATING TODAY 0 1 -1 1 MONTH TO DATE 0 2 -2 1 SINCE SEP 1 0 2 -2 1 SINCE JUL 1 11 13 -2 10 COOLING TODAY 1 5 -4 0 MONTH TO DATE 2 10 -8 2 SINCE SEP 1 2 10 -8 2 SINCE JAN 1 910 734 176 800 ................................................................... WIND (MPH) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 3.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 93 6:00 AM LOWEST 37 3:00 PM AVERAGE 65 .......................................................... THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 79 91 2023 MINIMUM TEMPERATURE (F) 58 49 2024 SUNRISE AND SUNSET SEPTEMBER 2 2025.....SUNRISE 6:20 AM CDT SUNSET 7:24 PM CDT SEPTEMBER 3 2025.....SUNRISE 6:21 AM CDT SUNSET 7:23 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$