835
CDUS43 KLOT 232138
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
438 PM CDT TUE SEP 23 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 23 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 79 1:13 PM 95 2017 74 5 68
MINIMUM 67 4:00 AM 35 1947 56 11 63
1974
AVERAGE 73 65 8 66
PRECIPITATION (IN)
TODAY 0.13 2.09 1961 0.10 0.03 0.01
MONTH TO DATE 0.56 2.16 -1.60 0.83
SINCE SEP 1 0.56 2.16 -1.60 0.83
SINCE JAN 1 25.38 26.19 -0.81 30.30
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 21 30 -9 10
SINCE SEP 1 21 30 -9 10
SINCE JUL 1 23 34 -11 10
COOLING
TODAY 8 3 5 1
MONTH TO DATE 148 119 29 189
SINCE SEP 1 148 119 29 189
SINCE JAN 1 1289 1075 214 1312
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 6.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 10:00 AM
LOWEST 60 1:00 PM
AVERAGE 72
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 92 2017
MINIMUM TEMPERATURE (F) 56 30 1928
SUNRISE AND SUNSET
SEPTEMBER 23 2025.....SUNRISE 6:40 AM CDT SUNSET 6:46 PM CDT
SEPTEMBER 24 2025.....SUNRISE 6:41 AM CDT SUNSET 6:44 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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