


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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551 CDUS43 KLOT 100634 CLIDPA CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 134 AM CDT SUN AUG 10 2025 ................................... ...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 9 2025... 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) YESTERDAY MAXIMUM 92 2:28 PM 94 2005 83 9 71 MINIMUM 73 5:20 AM 49 1999 63 10 57 AVERAGE 83 73 10 64 PRECIPITATION (IN) YESTERDAY 0.00 0.88 2008 0.12 -0.12 0.00 MONTH TO DATE 0.00 1.16 -1.16 0.74 SINCE JUN 1 9.61 8.43 1.18 10.33 SINCE JAN 1 17.67 20.69 -3.02 22.97 DEGREE DAYS HEATING YESTERDAY 0 0 0 1 MONTH TO DATE 0 0 0 1 SINCE JUN 1 18 37 -19 17 SINCE JUL 1 0 4 -4 4 COOLING YESTERDAY 18 8 10 0 MONTH TO DATE 78 72 6 81 SINCE JUN 1 710 519 191 585 SINCE JAN 1 743 575 168 639 ................................................................... WIND (MPH) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (180) HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (180) AVERAGE WIND SPEED 12.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM RELATIVE HUMIDITY (PERCENT) HIGHEST 82 1:00 AM LOWEST 52 12:00 PM AVERAGE 67 .......................................................... THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 83 92 2021 MINIMUM TEMPERATURE (F) 63 54 2008 2024 SUNRISE AND SUNSET AUGUST 10 2025........SUNRISE 5:56 AM CDT SUNSET 8:00 PM CDT AUGUST 11 2025........SUNRISE 5:57 AM CDT SUNSET 7:58 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$