577
CDUS43 KLOT 140637
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
137 AM CDT SUN SEP 14 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 13 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 79 5:26 PM 99 1939 78 1 85
MINIMUM 65 7:57 AM 40 1953 60 5 68
AVERAGE 72 69 3 77
PRECIPITATION (IN)
YESTERDAY 0.20 3.62 2008 0.08 0.12 0.00
MONTH TO DATE 0.26 1.26 -1.00 T
SINCE SEP 1 0.26 1.26 -1.00 T
SINCE JAN 1 25.08 25.29 -0.21 29.47
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 21 8 13 10
SINCE SEP 1 21 8 13 10
SINCE JUL 1 23 12 11 10
COOLING
YESTERDAY 7 5 2 12
MONTH TO DATE 45 81 -36 77
SINCE SEP 1 45 81 -36 77
SINCE JAN 1 1186 1037 149 1200
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 8.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 8:00 AM
LOWEST 48 12:00 AM
AVERAGE 69
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 101 1939
MINIMUM TEMPERATURE (F) 60 42 1937
1949
SUNRISE AND SUNSET
SEPTEMBER 14 2025.....SUNRISE 6:30 AM CDT SUNSET 7:02 PM CDT
SEPTEMBER 15 2025.....SUNRISE 6:31 AM CDT SUNSET 7:00 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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