Climatological Report (Daily)
Issued by NWS
Issued by NWS
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130 CDUS43 KLOT 172131 CLIMDW CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 431 PM CDT TUE SEP 17 2024 ................................... ...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 17 2024... VALID TODAY AS OF 0400 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1928 TO 2024 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 85 2:51 PM 93 1955 76 9 69 MINIMUM 62 5:24 AM 39 1937 58 4 55 AVERAGE 74 67 7 62 PRECIPITATION (IN) TODAY 0.00 1.20 1978 0.09 -0.09 1.20 2023 MONTH TO DATE T 1.60 -1.60 2.73 SINCE SEP 1 T 1.60 -1.60 2.73 SINCE JAN 1 29.47 25.63 3.84 28.34 DEGREE DAYS HEATING TODAY 0 2 -2 3 MONTH TO DATE 10 15 -5 10 SINCE SEP 1 10 15 -5 10 SINCE JUL 1 10 19 -9 11 COOLING TODAY 9 4 5 0 MONTH TO DATE 127 98 29 89 SINCE SEP 1 127 98 29 89 SINCE JAN 1 1250 1054 196 1051 ................................................................... WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (40) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (90) AVERAGE WIND SPEED 4.3 SKY COVER AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 65 6:00 AM LOWEST 25 3:00 PM AVERAGE 45 .......................................................... THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 76 94 1955 MINIMUM TEMPERATURE (F) 58 39 1929 SUNRISE AND SUNSET SEPTEMBER 17 2024.....SUNRISE 6:34 AM CDT SUNSET 6:56 PM CDT SEPTEMBER 18 2024.....SUNRISE 6:35 AM CDT SUNSET 6:54 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$