847
CDUS43 KLOT 300644
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
144 AM CDT WED SEP 30 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 29 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 78 3:29 PM 99 1953 70 8 89
MINIMUM 54 6:37 AM 32 1984 52 2 62
AVERAGE 66 61 5 76
PRECIPITATION (IN)
YESTERDAY 0.00 1.39 1921 0.09 -0.09 0.00
MONTH TO DATE 2.96 3.09 -0.13 0.49
SINCE SEP 1 2.96 3.09 -0.13 0.49
SINCE JAN 1 33.93 29.80 4.13 22.94
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 0 6 -6 0
MONTH TO DATE 27 70 -43 32
SINCE SEP 1 27 70 -43 32
SINCE JUL 1 27 76 -49 37
COOLING
YESTERDAY 1 2 -1 11
MONTH TO DATE 187 116 71 158
SINCE SEP 1 187 116 71 158
SINCE JAN 1 1113 988 125 1150
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 6:00 AM
LOWEST 37 3:00 PM
AVERAGE 69
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 92 1971
MINIMUM TEMPERATURE (F) 51 29 1984
SUNRISE AND SUNSET
SEPTEMBER 30 2026.....SUNRISE 6:48 AM CDT SUNSET 6:35 PM CDT
OCTOBER 1 2026.......SUNRISE 6:49 AM CDT SUNSET 6:33 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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