


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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859 CDUS43 KLOT 110636 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 136 AM CDT SAT OCT 11 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 10 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 67 4:11 PM 86 1962 65 2 73 MINIMUM 50 5:04 AM 27 1964 48 2 53 AVERAGE 59 56 3 63 PRECIPITATION (IN) YESTERDAY 0.01 3.94 1954 0.12 -0.11 0.00 MONTH TO DATE 1.36 1.12 0.24 0.01 SINCE SEP 1 1.85 4.31 -2.46 1.33 SINCE JAN 1 24.30 31.02 -6.72 28.19 SNOWFALL (IN) YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE SEP 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 6 9 -3 2 MONTH TO DATE 30 78 -48 24 SINCE SEP 1 62 155 -93 39 SINCE JUL 1 67 161 -94 39 COOLING YESTERDAY 0 1 -1 0 MONTH TO DATE 55 10 45 9 SINCE SEP 1 221 126 95 199 SINCE JAN 1 1213 998 215 1185 ................................................................... WIND (MPH) HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 8.2 SKY COVER AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 87 10:00 PM LOWEST 50 12:00 PM AVERAGE 69 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 65 87 1928 MINIMUM TEMPERATURE (F) 47 27 1906 1996 SUNRISE AND SUNSET OCTOBER 11 2025.......SUNRISE 7:00 AM CDT SUNSET 6:16 PM CDT OCTOBER 12 2025.......SUNRISE 7:01 AM CDT SUNSET 6:14 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$