


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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957 CDUS43 KLOT 032133 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 433 PM CDT THU APR 03 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 3 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 56 12:07 AM 81 1956 54 2 39 MINIMUM 45 12:17 PM 17 1879 36 9 34 1987 AVERAGE 51 45 6 37 PRECIPITATION (IN) TODAY 0.00 0.93 1974 0.11 -0.11 0.30 MONTH TO DATE 1.25 0.31 0.94 1.14 SINCE MAR 1 4.24 2.76 1.48 4.73 SINCE JAN 1 6.74 6.72 0.02 8.88 SNOWFALL (IN) TODAY 0.0 2.7 1984 0.1 -0.1 T MONTH TO DATE 0.0 0.3 -0.3 T SINCE MAR 1 2.8 5.8 -3.0 1.0 SINCE JUL 1 17.6 37.4 -19.8 22.2 SNOW DEPTH 0 DEGREE DAYS HEATING TODAY 14 20 -6 28 MONTH TO DATE 49 61 -12 72 SINCE MAR 1 679 869 -190 714 SINCE JUL 1 4814 5338 -524 4402 COOLING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 0 2 -2 0 SINCE JAN 1 0 2 -2 0 ................................................................... WIND (MPH) HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (250) HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (250) AVERAGE WIND SPEED 17.0 SKY COVER AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 77 5:00 AM LOWEST 58 11:00 AM AVERAGE 68 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 54 79 1921 1929 MINIMUM TEMPERATURE (F) 37 16 1975 SUNRISE AND SUNSET APRIL 3 2025.........SUNRISE 6:30 AM CDT SUNSET 7:20 PM CDT APRIL 4 2025.........SUNRISE 6:29 AM CDT SUNSET 7:21 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$