743
CDUS43 KLOT 230632
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT TUE SEP 23 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 22 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 83 3:34 PM 95 2017 74 9 77
MINIMUM 68 6:52 AM 34 1974 56 12 65
AVERAGE 76 65 11 71
PRECIPITATION (IN)
YESTERDAY 0.00 1.09 1965 0.09 -0.09 0.80
MONTH TO DATE 0.43 2.06 -1.63 0.82
SINCE SEP 1 0.43 2.06 -1.63 0.82
SINCE JAN 1 25.25 26.09 -0.84 30.29
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 21 27 -6 10
SINCE SEP 1 21 27 -6 10
SINCE JUL 1 23 31 -8 10
COOLING
YESTERDAY 11 3 8 6
MONTH TO DATE 140 116 24 188
SINCE SEP 1 140 116 24 188
SINCE JAN 1 1281 1072 209 1311
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 8.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 1:00 AM
LOWEST 46 4:00 PM
AVERAGE 64
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 95 2017
MINIMUM TEMPERATURE (F) 56 35 1947
1974
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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