


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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978 CDUS43 KLOT 112132 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 432 PM CDT SAT OCT 11 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 11 2025... VALID TODAY AS OF 0400 PM LOCAL TIME. 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) TODAY MAXIMUM 66 11:57 AM 87 1928 65 1 83 MINIMUM 47 5:36 AM 27 1906 47 0 55 1996 AVERAGE 57 56 1 69 PRECIPITATION (IN) TODAY 0.00 1.47 1972 0.11 -0.11 0.00 MONTH TO DATE 1.36 1.23 0.13 0.01 SINCE SEP 1 1.85 4.42 -2.57 1.33 SINCE JAN 1 24.30 31.13 -6.83 28.19 SNOWFALL (IN) TODAY 0.0 T 1905 0.0 0.0 0.0 1906 1909 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 TODAY 8 10 -2 0 MONTH TO DATE 38 88 -50 24 SINCE SEP 1 70 165 -95 39 SINCE JUL 1 75 171 -96 39 COOLING TODAY 0 1 -1 4 MONTH TO DATE 55 11 44 13 SINCE SEP 1 221 127 94 203 SINCE JAN 1 1213 999 214 1189 ................................................................... WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40) HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (30) AVERAGE WIND SPEED 9.1 SKY COVER AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 89 5:00 AM LOWEST 52 10:00 AM AVERAGE 71 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 65 84 1956 1960 2008 MINIMUM TEMPERATURE (F) 47 28 1987 1988 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. $$