


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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916 CDUS43 KLOT 130635 CLIDPA CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 135 AM CDT WED AUG 13 2025 ................................... ...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 12 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 86 4:30 PM 94 2010 83 3 79 MINIMUM 71 5:30 AM 48 2004 63 8 55 AVERAGE 79 72 7 67 PRECIPITATION (IN) YESTERDAY 0.17 0.70 2005 0.13 0.04 0.00 MONTH TO DATE 0.29 1.52 -1.23 0.74 SINCE JUN 1 9.90 8.79 1.11 10.33 SINCE JAN 1 17.96 21.05 -3.09 22.97 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 2 SINCE JUN 1 18 37 -19 18 SINCE JUL 1 0 4 -4 5 COOLING YESTERDAY 14 8 6 2 MONTH TO DATE 124 96 28 83 SINCE JUN 1 756 543 213 587 SINCE JAN 1 789 599 190 641 ................................................................... WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 5.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM HEAVY RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 4:00 AM LOWEST 59 4:00 PM AVERAGE 76 .......................................................... THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 82 91 2010 MINIMUM TEMPERATURE (F) 63 50 2004 SUNRISE AND SUNSET AUGUST 13 2025........SUNRISE 5:59 AM CDT SUNSET 7:56 PM CDT AUGUST 14 2025........SUNRISE 6:00 AM CDT SUNSET 7:54 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$