540
CDUS43 KLOT 092133
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT WED SEP 09 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 9 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 80 2:27 PM 95 1955 78 2 76
1959
1983
MINIMUM 71 7:06 AM 43 1986 60 11 53
AVERAGE 76 69 7 65
PRECIPITATION (IN)
TODAY 0.06 3.44 1875 0.10 -0.04 0.00
MONTH TO DATE 0.06 1.02 -0.96 0.01
SINCE SEP 1 0.06 1.02 -0.96 0.01
SINCE JAN 1 31.03 27.73 3.30 22.46
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 0 6 -6 32
SINCE SEP 1 0 6 -6 32
SINCE JUL 1 0 12 -12 37
COOLING
TODAY 11 5 6 0
MONTH TO DATE 132 53 79 8
SINCE SEP 1 132 53 79 8
SINCE JAN 1 1058 925 133 1000
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 7.6
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 8:00 AM
LOWEST 60 12:00 AM
AVERAGE 77
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 95 1983
2013
MINIMUM TEMPERATURE (F) 59 44 1943
SUNRISE AND SUNSET
SEPTEMBER 9 2026.....SUNRISE 6:26 AM CDT SUNSET 7:11 PM CDT
SEPTEMBER 10 2026.....SUNRISE 6:27 AM CDT SUNSET 7:10 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page