958
CDUS43 KLOT 120632
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT FRI SEP 12 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 11 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 2:58 PM 95 1931 78 1 88
1952
MINIMUM 67 11:59 PM 44 1940 61 6 59
1943
AVERAGE 73 69 4 74
PRECIPITATION (IN)
YESTERDAY 0.00 4.16 2000 0.08 -0.08 0.00
MONTH TO DATE 0.06 1.10 -1.04 T
SINCE SEP 1 0.06 1.10 -1.04 T
SINCE JAN 1 24.88 25.13 -0.25 29.47
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 21 6 15 10
SINCE SEP 1 21 6 15 10
SINCE JUL 1 23 10 13 10
COOLING
YESTERDAY 8 5 3 9
MONTH TO DATE 29 71 -42 54
SINCE SEP 1 29 71 -42 54
SINCE JAN 1 1170 1027 143 1177
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 7.3
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 9:00 PM
LOWEST 39 1:00 PM
AVERAGE 59
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 1939
1952
MINIMUM TEMPERATURE (F) 60 44 1940
1955
SUNRISE AND SUNSET
SEPTEMBER 12 2025.....SUNRISE 6:28 AM CDT SUNSET 7:05 PM CDT
SEPTEMBER 13 2025.....SUNRISE 6:29 AM CDT SUNSET 7:03 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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