941  
CDUS43 KLOT 070632  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT THU AUG 07 2025  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 6 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 87 3:38 PM 101 1918 84 3 75  
1947  
MINIMUM 65 4:46 AM 48 1994 66 -1 67  
AVERAGE 76 75 1 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.17 1951 0.14 -0.14 0.34  
MONTH TO DATE 0.00 0.86 -0.86 0.85  
SINCE JUN 1 7.92 8.67 -0.75 9.84  
SINCE JAN 1 17.42 23.32 -5.90 25.11  
 
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 11 10 1 6  
MONTH TO DATE 39 60 -21 84  
SINCE JUN 1 728 585 143 678  
SINCE JAN 1 762 655 107 758    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 40 3:00 PM  
AVERAGE 67  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 99 1918  
MINIMUM TEMPERATURE (F) 66 50 1990  
1994  
 
SUNRISE AND SUNSET  
AUGUST 7 2025........SUNRISE 5:52 AM CDT SUNSET 8:02 PM CDT  
AUGUST 8 2025........SUNRISE 5:53 AM CDT SUNSET 8:01 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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