758
CDUS43 KLOT 292134
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT MON SEP 29 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 29 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 89 1:53 PM 99 1953 70 19 74
MINIMUM 62 5:59 AM 32 1984 52 10 66
AVERAGE 76 61 15 70
PRECIPITATION (IN)
TODAY 0.00 1.39 1921 0.09 -0.09 0.01
MONTH TO DATE 0.49 3.09 -2.60 1.32
SINCE SEP 1 0.49 3.09 -2.60 1.32
SINCE JAN 1 22.94 29.80 -6.86 28.18
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 6 -6 0
MONTH TO DATE 32 70 -38 15
SINCE SEP 1 32 70 -38 15
SINCE JUL 1 37 76 -39 15
COOLING
TODAY 11 2 9 5
MONTH TO DATE 158 116 42 184
SINCE SEP 1 158 116 42 184
SINCE JAN 1 1150 988 162 1170
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 2.4
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 3:00 AM
LOWEST 28 1:00 PM
AVERAGE 58
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 92 1971
MINIMUM TEMPERATURE (F) 51 29 1984
SUNRISE AND SUNSET
SEPTEMBER 29 2025.....SUNRISE 6:47 AM CDT SUNSET 6:36 PM CDT
SEPTEMBER 30 2025.....SUNRISE 6:48 AM CDT SUNSET 6:34 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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