923
CDUS43 KLOT 122135
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT FRI SEP 12 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 12 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 85 2:12 PM 96 1939 78 7 87
1952
MINIMUM 62 5:21 AM 44 1940 60 2 65
1955
AVERAGE 74 69 5 76
PRECIPITATION (IN)
TODAY 0.00 2.43 1961 0.08 -0.08 0.00
MONTH TO DATE 0.06 1.18 -1.12 T
SINCE SEP 1 0.06 1.18 -1.12 T
SINCE JAN 1 24.88 25.21 -0.33 29.47
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 21 7 14 10
SINCE SEP 1 21 7 14 10
SINCE JUL 1 23 11 12 10
COOLING
TODAY 9 5 4 11
MONTH TO DATE 38 76 -38 65
SINCE SEP 1 38 76 -38 65
SINCE JAN 1 1179 1032 147 1188
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 4.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 4:00 AM
LOWEST 31 2:00 PM
AVERAGE 59
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 99 1939
MINIMUM TEMPERATURE (F) 60 40 1953
SUNRISE AND SUNSET
SEPTEMBER 12 2025.....SUNRISE 6:28 AM CDT SUNSET 7:05 PM CDT
SEPTEMBER 13 2025.....SUNRISE 6:29 AM CDT SUNSET 7:03 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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