016
CDUS43 KLOT 280634
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT SUN SEP 28 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 27 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 89 3:12 PM 91 1971 72 17 73
MINIMUM 62 5:37 AM 31 1942 54 8 68
AVERAGE 76 63 13 71
PRECIPITATION (IN)
YESTERDAY 0.00 2.96 2019 0.09 -0.09 0.00
MONTH TO DATE 0.56 2.52 -1.96 1.78
SINCE SEP 1 0.56 2.52 -1.96 1.78
SINCE JAN 1 25.38 26.55 -1.17 31.25
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 21 45 -24 10
SINCE SEP 1 21 45 -24 10
SINCE JUL 1 23 49 -26 10
COOLING
YESTERDAY 11 2 9 6
MONTH TO DATE 174 129 45 201
SINCE SEP 1 174 129 45 201
SINCE JAN 1 1315 1085 230 1324
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WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 7.6
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 6:00 AM
LOWEST 27 3:00 PM
AVERAGE 49
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THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 92 1953
MINIMUM TEMPERATURE (F) 54 29 1942
SUNRISE AND SUNSET
SEPTEMBER 28 2025.....SUNRISE 6:45 AM CDT SUNSET 6:37 PM CDT
SEPTEMBER 29 2025.....SUNRISE 6:46 AM CDT SUNSET 6:36 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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