244
CDUS43 KLOT 102137
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT WED SEP 10 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 10 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 82 2:47 PM 95 1983 78 4 82
2013
MINIMUM 60 5:32 AM 44 1943 59 1 58
AVERAGE 71 69 2 70
PRECIPITATION (IN)
TODAY 0.00 2.48 1922 0.10 -0.10 0.00
MONTH TO DATE 0.01 1.12 -1.11 0.04
SINCE SEP 1 0.01 1.12 -1.11 0.04
SINCE JAN 1 22.46 27.83 -5.37 26.90
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 1 -1 0
MONTH TO DATE 32 7 25 14
SINCE SEP 1 32 7 25 14
SINCE JUL 1 37 13 24 14
COOLING
TODAY 6 5 1 5
MONTH TO DATE 14 58 -44 34
SINCE SEP 1 14 58 -44 34
SINCE JAN 1 1006 930 76 1020
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 3.7
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 6:00 AM
LOWEST 30 3:00 PM
AVERAGE 50
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 95 1952
MINIMUM TEMPERATURE (F) 59 42 1993
SUNRISE AND SUNSET
SEPTEMBER 10 2025.....SUNRISE 6:27 AM CDT SUNSET 7:09 PM CDT
SEPTEMBER 11 2025.....SUNRISE 6:28 AM CDT SUNSET 7:07 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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