821
CDUS43 KLOT 270633
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SAT SEP 27 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 26 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 84 3:42 PM 93 1998 73 11 77
2017
MINIMUM 58 3:35 AM 30 1928 55 3 57
AVERAGE 71 64 7 67
PRECIPITATION (IN)
YESTERDAY 0.00 2.72 1986 0.09 -0.09 0.00
MONTH TO DATE 0.56 2.43 -1.87 1.78
SINCE SEP 1 0.56 2.43 -1.87 1.78
SINCE JAN 1 25.38 26.46 -1.08 31.25
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 21 41 -20 10
SINCE SEP 1 21 41 -20 10
SINCE JUL 1 23 45 -22 10
COOLING
YESTERDAY 6 2 4 2
MONTH TO DATE 163 127 36 195
SINCE SEP 1 163 127 36 195
SINCE JAN 1 1304 1083 221 1318
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 7.7
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 2:00 AM
LOWEST 34 2:00 PM
AVERAGE 59
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 91 1971
MINIMUM TEMPERATURE (F) 54 31 1942
SUNRISE AND SUNSET
SEPTEMBER 27 2025.....SUNRISE 6:44 AM CDT SUNSET 6:39 PM CDT
SEPTEMBER 28 2025.....SUNRISE 6:45 AM CDT SUNSET 6:37 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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