648
CDUS43 KLOT 072134
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT TUE OCT 07 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 7 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 66 2:59 PM 87 2007 67 -1 68
MINIMUM 57 11:00 AM 29 2001 49 8 48
AVERAGE 62 58 4 58
PRECIPITATION (IN)
TODAY 0.95 1.39 1930 0.11 0.84 0.00
MONTH TO DATE 1.35 0.78 0.57 0.01
SINCE SEP 1 1.84 3.97 -2.13 1.33
SINCE JAN 1 24.29 30.68 -6.39 28.19
SNOWFALL (IN)
TODAY 0.0 T 2000 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 3 8 -5 7
MONTH TO DATE 3 51 -48 15
SINCE SEP 1 35 128 -93 30
SINCE JUL 1 40 134 -94 30
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 55 7 48 9
SINCE SEP 1 221 123 98 199
SINCE JAN 1 1213 995 218 1185
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 12.0
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 12:00 AM
LOWEST 42 3:00 PM
AVERAGE 70
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 88 1997
MINIMUM TEMPERATURE (F) 48 27 1987
SUNRISE AND SUNSET
OCTOBER 7 2025.......SUNRISE 6:55 AM CDT SUNSET 6:22 PM CDT
OCTOBER 8 2025.......SUNRISE 6:57 AM CDT SUNSET 6:21 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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