756
CDUS43 KLOT 170633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SUN AUG 17 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 16 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 95 2:47 PM 98 1983 83 12 87
1988
MINIMUM 73 11:56 PM 48 2004 65 8 67
AVERAGE 84 74 10 77
PRECIPITATION (IN)
YESTERDAY 0.59 3.79 1968 0.15 0.44 0.22
MONTH TO DATE 1.11 2.24 -1.13 1.32
SINCE JUN 1 9.03 10.05 -1.02 10.31
SINCE JAN 1 18.53 24.70 -6.17 25.58
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 T
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 13 33 -20 6
SINCE JUL 1 0 2 -2 0
COOLING
YESTERDAY 19 9 10 12
MONTH TO DATE 200 156 44 152
SINCE JUN 1 889 681 208 746
SINCE JAN 1 923 751 172 826
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 6:00 PM
LOWEST 48 3:00 PM
AVERAGE 71
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 98 1947
1988
MINIMUM TEMPERATURE (F) 65 48 1976
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 7:47 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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