


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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520 CDUS43 KLOT 100633 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 133 AM CDT THU JUL 10 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 9 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 85 9:49 AM 98 1974 85 0 81 MINIMUM 69 9:49 PM 50 1895 66 3 69 AVERAGE 77 76 1 75 PRECIPITATION (IN) YESTERDAY 0.01 2.43 1946 0.12 -0.11 0.38 MONTH TO DATE 0.74 0.99 -0.25 1.55 SINCE JUN 1 4.37 5.09 -0.72 4.65 SINCE JAN 1 13.87 19.74 -5.87 19.92 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 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 31 -18 6 SINCE JUL 1 0 0 0 0 COOLING YESTERDAY 12 10 2 10 MONTH TO DATE 131 90 41 93 SINCE JUN 1 427 289 138 371 SINCE JAN 1 461 359 102 451 ................................................................... WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (20) HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (80) AVERAGE WIND SPEED 7.3 SKY COVER AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 93 5:00 AM LOWEST 63 11:00 AM AVERAGE 78 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 85 102 1901 1936 MINIMUM TEMPERATURE (F) 66 50 1996 1997 SUNRISE AND SUNSET JULY 10 2025..........SUNRISE 5:26 AM CDT SUNSET 8:28 PM CDT JULY 11 2025..........SUNRISE 5:26 AM CDT SUNSET 8:27 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$