


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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551 CDUS43 KLOT 170647 CLIPWK CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 147 AM CDT THU JUL 17 2025 ................................... ...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR JULY 16 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 91 1:42 PM 97 2012 84 7 86 MINIMUM 71 11:59 PM 56 2014 66 5 69 AVERAGE 81 75 6 78 PRECIPITATION (IN) YESTERDAY 0.27 0.88 2015 0.10 0.17 0.35 MONTH TO DATE 2.19 1.67 0.52 4.87 SINCE JUN 1 5.49 5.64 -0.15 9.45 SINCE JAN 1 13.26 17.16 -3.90 23.74 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 3 SINCE JUN 1 21 37 -16 14 SINCE JUL 1 0 0 0 3 COOLING YESTERDAY 16 10 6 13 MONTH TO DATE 194 156 38 167 SINCE JUN 1 458 337 121 424 SINCE JAN 1 479 397 82 461 ................................................................... WIND (MPH) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (340) HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (320) AVERAGE WIND SPEED 9.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM HEAVY RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 94 6:00 AM LOWEST 50 2:00 PM AVERAGE 72 .......................................................... THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 84 99 2012 MINIMUM TEMPERATURE (F) 66 53 2014 SUNRISE AND SUNSET JULY 17 2025..........SUNRISE 5:31 AM CDT SUNSET 8:24 PM CDT JULY 18 2025..........SUNRISE 5:32 AM CDT SUNSET 8:23 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$