


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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844 CDUS43 KLOT 240631 CLIDPA CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 131 AM CDT SUN AUG 24 2025 ................................... ...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 23 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 83 12:55 PM 95 2023 81 2 80 MINIMUM 60 11:59 PM 51 1997 61 -1 53 2005 AVERAGE 72 71 1 67 PRECIPITATION (IN) YESTERDAY T 1.97 2007 0.12 -0.12 0.00 MONTH TO DATE 2.68 2.86 -0.18 1.56 SINCE JUN 1 12.29 10.13 2.16 11.15 SINCE JAN 1 20.35 22.39 -2.04 23.79 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 6 SINCE JUN 1 18 37 -19 22 SINCE JUL 1 0 4 -4 9 COOLING YESTERDAY 7 6 1 2 MONTH TO DATE 238 173 65 137 SINCE JUN 1 870 620 250 641 SINCE JAN 1 903 676 227 695 ................................................................... WIND (MPH) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 9.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 87 5:00 AM LOWEST 45 4:00 PM AVERAGE 66 .......................................................... THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 81 97 2023 MINIMUM TEMPERATURE (F) 61 51 2005 2017 SUNRISE AND SUNSET AUGUST 24 2025........SUNRISE 6:11 AM CDT SUNSET 7:39 PM CDT AUGUST 25 2025........SUNRISE 6:12 AM CDT SUNSET 7:37 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$