588
CDUS43 KLOT 112137
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CDT THU SEP 11 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 11 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 79 MM 95 1931 78 1 88
1952
MINIMUM 67 MM 44 1940 61 6 59
1943
AVERAGE 73 69 4 74
PRECIPITATION (IN)
TODAY 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
TODAY 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
TODAY 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 12 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 7.0
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 3:00 AM
LOWEST 39 1:00 PM
AVERAGE 58
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 1939
1952
MINIMUM TEMPERATURE (F) 60 44 1940
1955
SUNRISE AND SUNSET
SEPTEMBER 11 2025.....SUNRISE 6:27 AM CDT SUNSET 7:07 PM CDT
SEPTEMBER 12 2025.....SUNRISE 6:28 AM CDT SUNSET 7:05 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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