800
CDUS43 KLOT 290640
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT TUE SEP 29 2026
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 28 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 73 1:58 PM 92 1953 71 2 80
MINIMUM 52 5:58 AM 29 1942 52 0 62
AVERAGE 63 61 2 71
PRECIPITATION (IN)
YESTERDAY 0.00 3.65 1972 0.10 -0.10 0.00
MONTH TO DATE 2.96 3.00 -0.04 0.49
SINCE SEP 1 2.96 3.00 -0.04 0.49
SINCE JAN 1 33.93 29.71 4.22 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 2 5 -3 0
MONTH TO DATE 27 64 -37 32
SINCE SEP 1 27 64 -37 32
SINCE JUL 1 27 70 -43 37
COOLING
YESTERDAY 0 2 -2 6
MONTH TO DATE 186 114 72 147
SINCE SEP 1 186 114 72 147
SINCE JAN 1 1112 986 126 1139
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 4.2
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1:00 AM
LOWEST 48 1:00 PM
AVERAGE 71
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 99 1953
MINIMUM TEMPERATURE (F) 52 32 1984
SUNRISE AND SUNSET
SEPTEMBER 29 2026.....SUNRISE 6:46 AM CDT SUNSET 6:37 PM CDT
SEPTEMBER 30 2026.....SUNRISE 6:48 AM CDT SUNSET 6:35 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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