113
CDUS43 KLOT 272134
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT SUN SEP 27 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 27 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 72 1:52 PM 91 1971 71 1 87
MINIMUM 49 4:56 AM 31 1942 53 -4 63
AVERAGE 61 62 -1 75
PRECIPITATION (IN)
TODAY 0.00 2.28 2019 0.10 -0.10 0.00
MONTH TO DATE 2.96 2.90 0.06 0.49
SINCE SEP 1 2.96 2.90 0.06 0.49
SINCE JAN 1 33.93 29.61 4.32 22.94
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 4 5 -1 0
MONTH TO DATE 25 59 -34 32
SINCE SEP 1 25 59 -34 32
SINCE JUL 1 25 65 -40 37
COOLING
TODAY 0 2 -2 10
MONTH TO DATE 186 112 74 141
SINCE SEP 1 186 112 74 141
SINCE JAN 1 1112 984 128 1133
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 4.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 7:00 AM
LOWEST 38 1:00 PM
AVERAGE 69
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 92 1953
MINIMUM TEMPERATURE (F) 52 29 1942
SUNRISE AND SUNSET
SEPTEMBER 27 2026.....SUNRISE 6:44 AM CDT SUNSET 6:40 PM CDT
SEPTEMBER 28 2026.....SUNRISE 6:45 AM CDT SUNSET 6:38 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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