763
CDUS43 KLOT 242136
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT WED SEP 24 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 24 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 73 12:51 PM 93 2017 72 1 67
MINIMUM 61 6:13 AM 35 1942 54 7 62
1985
1989
AVERAGE 67 63 4 65
PRECIPITATION (IN)
TODAY 0.00 1.85 1977 0.11 -0.11 0.43
MONTH TO DATE 0.49 2.59 -2.10 1.31
SINCE SEP 1 0.49 2.59 -2.10 1.31
SINCE JAN 1 22.94 29.30 -6.36 28.17
SNOWFALL (IN)
TODAY 0.0 0.0 MM 0.0 0.0 0.0
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 0 4 -4 0
MONTH TO DATE 32 45 -13 15
SINCE SEP 1 32 45 -13 15
SINCE JUL 1 37 51 -14 15
COOLING
TODAY 2 2 0 0
MONTH TO DATE 122 106 16 167
SINCE SEP 1 122 106 16 167
SINCE JAN 1 1114 978 136 1153
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 11.4
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 AM
LOWEST 59 12:00 PM
AVERAGE 76
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 92 2017
MINIMUM TEMPERATURE (F) 53 30 1942
SUNRISE AND SUNSET
SEPTEMBER 24 2025.....SUNRISE 6:41 AM CDT SUNSET 6:45 PM CDT
SEPTEMBER 25 2025.....SUNRISE 6:42 AM CDT SUNSET 6:43 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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