Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS43 KLOT 290634
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT FRI AUG 29 2025
...................................
...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 28 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 78 12:08 PM 97 1953 81 -3 87
1955
MINIMUM 63 6:30 AM 46 1935 65 -2 73
1982
AVERAGE 71 73 -2 80
PRECIPITATION (IN)
YESTERDAY 0.41 1.57 2004 0.13 0.28 0.28
MONTH TO DATE 3.22 3.61 -0.39 3.71
SINCE JUN 1 15.25 11.17 4.08 13.46
SINCE JAN 1 24.82 23.65 1.17 29.44
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 6 8 -2 15
MONTH TO DATE 314 274 40 298
SINCE JUN 1 1082 849 233 972
SINCE JAN 1 1133 931 202 1085
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 8.9
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 7:00 AM
LOWEST 56 12:00 PM
AVERAGE 72
..........................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 98 1953
MINIMUM TEMPERATURE (F) 65 43 1965
SUNRISE AND SUNSET
AUGUST 29 2025........SUNRISE 6:14 AM CDT SUNSET 7:29 PM CDT
AUGUST 30 2025........SUNRISE 6:15 AM CDT SUNSET 7:27 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$