815
CDUS43 KLOT 220634
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT TUE SEP 22 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 21 2026
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)
YESTERDAY
MAXIMUM 66 12:23 PM 94 2017 74 -8 83
MINIMUM 59 11:59 PM 39 1889 55 4 67
1983
1991
AVERAGE 63 64 -1 75
PRECIPITATION (IN)
YESTERDAY T 1.67 1947 0.11 -0.11 0.01
MONTH TO DATE 2.96 2.27 0.69 0.40
SINCE SEP 1 2.96 2.27 0.69 0.40
SINCE JAN 1 33.93 28.98 4.95 22.85
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 2 3 -1 0
MONTH TO DATE 5 33 -28 32
SINCE SEP 1 5 33 -28 32
SINCE JUL 1 5 39 -34 37
COOLING
YESTERDAY 0 3 -3 10
MONTH TO DATE 186 99 87 104
SINCE SEP 1 186 99 87 104
SINCE JAN 1 1112 971 141 1096
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 15.1
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 8:00 AM
LOWEST 67 12:00 AM
AVERAGE 75
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 94 2017
MINIMUM TEMPERATURE (F) 55 32 1995
SUNRISE AND SUNSET
SEPTEMBER 22 2026.....SUNRISE 6:39 AM CDT SUNSET 6:49 PM CDT
SEPTEMBER 23 2026.....SUNRISE 6:40 AM CDT SUNSET 6:47 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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