Climatological Report (Daily)
Issued by NWS
Issued by NWS
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666
CDUS43 KLOT 070632
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT SUN SEP 07 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 6 2025...
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)
YESTERDAY
MAXIMUM 68 1:51 PM 97 1954 79 -11 70
1960
MINIMUM 48 6:04 AM 42 1984 61 -13 54
AVERAGE 58 70 -12 62
PRECIPITATION (IN)
YESTERDAY 0.00 1.53 1894 0.11 -0.11 0.00
MONTH TO DATE 0.01 0.70 -0.69 0.04
SINCE SEP 1 0.01 0.70 -0.69 0.04
SINCE JAN 1 22.46 27.41 -4.95 26.90
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 7 1 6 3
MONTH TO DATE 21 3 18 3
SINCE SEP 1 21 3 18 3
SINCE JUL 1 26 9 17 3
COOLING
YESTERDAY 0 6 -6 0
MONTH TO DATE 8 37 -29 25
SINCE SEP 1 8 37 -29 25
SINCE JAN 1 1000 909 91 1011
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 8.5
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 6:00 AM
LOWEST 33 2:00 PM
AVERAGE 57
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 100 1939
1960
MINIMUM TEMPERATURE (F) 61 42 1986
SUNRISE AND SUNSET
SEPTEMBER 7 2025.....SUNRISE 6:24 AM CDT SUNSET 7:14 PM CDT
SEPTEMBER 8 2025.....SUNRISE 6:25 AM CDT SUNSET 7:13 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$