Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 272133
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT WED AUG 27 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 27 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 77 1:41 PM 99 2024 81 -4 99
MINIMUM 56 4:04 AM 46 1935 65 -9 75
1982
AVERAGE 67 73 -6 87
PRECIPITATION (IN)
TODAY 0.00 1.57 2004 0.12 -0.12 0.57
MONTH TO DATE 2.81 3.48 -0.67 3.43
SINCE JUN 1 14.84 11.04 3.80 13.18
SINCE JAN 1 24.41 23.52 0.89 29.16
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 1 0 1 0
SINCE JUN 1 10 25 -15 3
SINCE JUL 1 1 1 0 0
COOLING
TODAY 2 8 -6 22
MONTH TO DATE 308 266 42 283
SINCE JUN 1 1076 841 235 957
SINCE JAN 1 1127 923 204 1070
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 6:00 AM
LOWEST 39 3:00 PM
AVERAGE 58
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 97 1953
1955
MINIMUM TEMPERATURE (F) 65 46 1935
1982
SUNRISE AND SUNSET
AUGUST 27 2025........SUNRISE 6:12 AM CDT SUNSET 7:32 PM CDT
AUGUST 28 2025........SUNRISE 6:13 AM CDT SUNSET 7:30 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$