Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 152136
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT TUE SEP 15 2026
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 15 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 85 2:56 PM 102 1939 77 8 84
MINIMUM 68 6:48 AM 41 1949 59 9 67
AVERAGE 77 68 9 76
PRECIPITATION (IN)
TODAY 0.01 1.07 1936 0.08 -0.07 0.00
MONTH TO DATE 0.07 1.43 -1.36 0.26
SINCE SEP 1 0.07 1.43 -1.36 0.26
SINCE JAN 1 32.21 25.46 6.75 25.08
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 2 11 -9 21
SINCE SEP 1 2 11 -9 21
SINCE JUL 1 2 15 -13 23
COOLING
TODAY 12 4 8 11
MONTH TO DATE 177 90 87 67
SINCE SEP 1 177 90 87 67
SINCE JAN 1 1148 1046 102 1208
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 10.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74 1:00 PM
LOWEST 51 12:00 AM
AVERAGE 63
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 93 1931
MINIMUM TEMPERATURE (F) 59 39 1984
SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE 6:31 AM CDT SUNSET 7:00 PM CDT
SEPTEMBER 16 2026.....SUNRISE 6:32 AM CDT SUNSET 6:59 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$