


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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039 CDUS43 KLOT 030635 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 135 AM CDT THU APR 03 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 2 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 71 5:20 PM 82 1963 54 17 45 MINIMUM 40 5:47 AM 18 1896 36 4 36 1899 AVERAGE 56 45 11 41 PRECIPITATION (IN) YESTERDAY 1.25 1.64 1983 0.10 1.15 0.40 MONTH TO DATE 1.25 0.20 1.05 0.84 SINCE MAR 1 4.24 2.65 1.59 4.43 SINCE JAN 1 6.74 6.61 0.13 8.58 SNOWFALL (IN) YESTERDAY 0.0 9.4 1975 0.1 -0.1 T MONTH TO DATE 0.0 0.2 -0.2 T SINCE MAR 1 2.8 5.7 -2.9 1.0 SINCE JUL 1 17.6 37.3 -19.7 22.2 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 9 20 -11 24 MONTH TO DATE 35 41 -6 44 SINCE MAR 1 665 849 -184 686 SINCE JUL 1 4800 5318 -518 4374 COOLING YESTERDAY 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 28 HIGHEST WIND DIRECTION SE (120) HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION SW (210) AVERAGE WIND SPEED 14.4 SKY COVER AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM HEAVY RAIN RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 97 1:00 PM LOWEST 60 11:00 PM AVERAGE 79 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 54 81 1956 MINIMUM TEMPERATURE (F) 36 17 1879 1987 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. $$