230
CDUS43 KLOT 172203 CCA
CLIMDW
CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO IL
447 PM CDT SUN AUG 17 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 17 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 84 11:34 AM 99 1988 83 1 83
MINIMUM 70 2:49 AM 48 1976 67 3 70
AVERAGE 77 75 2 77
PRECIPITATION (IN)
TODAY 0.70 2.60 1979 0.14 0.56 0.46
MONTH TO DATE 1.44 2.20 -0.76 2.85
SINCE JUN 1 13.47 9.76 3.71 12.60
SINCE JAN 1 23.04 22.24 0.80 28.58
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 9 25 -16 3
SINCE JUL 1 0 1 -1 0
COOLING
TODAY 12 10 2 12
MONTH TO DATE 240 177 63 180
SINCE JUN 1 1008 752 256 854
SINCE JAN 1 1059 834 225 967
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 53 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 53 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 7.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 91 2:00 AM
LOWEST 69 2:00 PM
AVERAGE 80
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 99 1936
MINIMUM TEMPERATURE (F) 66 49 1963
SUNRISE AND SUNSET
AUGUST 17 2025........SUNRISE 6:02 AM CDT SUNSET 7:48 PM CDT
AUGUST 18 2025........SUNRISE 6:03 AM CDT SUNSET 7:46 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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