Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 100636
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT WED SEP 10 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 9 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 77 1:53 PM 95 1955 79 -2 82
1959
1983
MINIMUM 54 5:49 AM 47 1943 61 -7 57
1975
AVERAGE 66 70 -4 70
PRECIPITATION (IN)
YESTERDAY 0.00 3.25 1992 0.09 -0.09 0.00
MONTH TO DATE 0.06 0.93 -0.87 T
SINCE SEP 1 0.06 0.93 -0.87 T
SINCE JAN 1 24.88 24.96 -0.08 29.47
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 21 4 17 10
SINCE SEP 1 21 4 17 10
SINCE JUL 1 23 8 15 10
COOLING
YESTERDAY 1 6 -5 5
MONTH TO DATE 12 60 -48 39
SINCE SEP 1 12 60 -48 39
SINCE JAN 1 1153 1016 137 1162
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 6.5
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62 5:00 AM
LOWEST 30 3:00 PM
AVERAGE 46
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 2013
MINIMUM TEMPERATURE (F) 61 44 1943
SUNRISE AND SUNSET
SEPTEMBER 10 2025.....SUNRISE 6:26 AM CDT SUNSET 7:09 PM CDT
SEPTEMBER 11 2025.....SUNRISE 6:27 AM CDT SUNSET 7:07 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$