


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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453 CDUS43 KLOT 110633 CLIMDW CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 133 AM CDT MON AUG 11 2025 ................................... ...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 10 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1928 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 92 3:20 PM 99 1944 83 9 76 MINIMUM 79 6:22 AM 49 1972 67 12 57 AVERAGE 86 75 11 67 PRECIPITATION (IN) YESTERDAY T 2.70 1980 0.13 -0.13 0.00 MONTH TO DATE T 1.23 -1.23 0.94 SINCE JUN 1 12.03 8.79 3.24 10.69 SINCE JAN 1 21.60 21.27 0.33 26.67 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 9 25 -16 3 SINCE JUL 1 0 1 -1 0 COOLING YESTERDAY 21 10 11 2 MONTH TO DATE 134 107 27 115 SINCE JUN 1 902 682 220 789 SINCE JAN 1 953 764 189 902 ................................................................... WIND (MPH) HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (220) HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (190) AVERAGE WIND SPEED 11.2 SKY COVER AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 74 2:00 AM LOWEST 48 5:00 PM AVERAGE 61 .......................................................... THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 83 100 1941 MINIMUM TEMPERATURE (F) 67 50 1982 SUNRISE AND SUNSET AUGUST 11 2025........SUNRISE 5:56 AM CDT SUNSET 7:56 PM CDT AUGUST 12 2025........SUNRISE 5:57 AM CDT SUNSET 7:55 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$