


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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860 CDUS43 KLOT 060631 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 131 AM CDT WED AUG 06 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 5 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1871 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 83 1:34 PM 102 1918 84 -1 91 MINIMUM 65 5:10 AM 51 1994 66 -1 74 AVERAGE 74 75 -1 83 PRECIPITATION (IN) YESTERDAY 0.00 2.72 1924 0.14 -0.14 T MONTH TO DATE 0.00 0.72 -0.72 0.51 SINCE JUN 1 7.92 8.53 -0.61 9.50 SINCE JAN 1 17.42 23.18 -5.76 24.77 SNOWFALL (IN) YESTERDAY 0.0 T 1932 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE JUN 1 0.0 0.0 0.0 T SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 13 33 -20 6 SINCE JUL 1 0 2 -2 0 COOLING YESTERDAY 9 10 -1 18 MONTH TO DATE 28 50 -22 78 SINCE JUN 1 717 575 142 672 SINCE JAN 1 751 645 106 752 ................................................................... WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (80) HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (110) AVERAGE WIND SPEED 8.3 SKY COVER AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 97 5:00 AM LOWEST 38 2:00 PM AVERAGE 68 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 84 101 1918 1947 MINIMUM TEMPERATURE (F) 66 48 1994 SUNRISE AND SUNSET AUGUST 6 2025........SUNRISE 5:51 AM CDT SUNSET 8:04 PM CDT AUGUST 7 2025........SUNRISE 5:52 AM CDT SUNSET 8:02 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$