180  
CDUS43 KLOT 090633  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT FRI AUG 09 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 8 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 83 3:22 PM 100 1934 83 0 85  
MINIMUM 64 5:46 AM 52 1976 66 -2 64  
AVERAGE 74 75 -1 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.35 1977 0.13 -0.13 0.00  
MONTH TO DATE 0.85 1.11 -0.26 0.13  
SINCE JUN 1 9.84 8.92 0.92 10.10  
SINCE JAN 1 25.11 23.57 1.54 23.06  
 
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 T 0.0 0.0 0.0  
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 6 33 -27 25  
SINCE JUL 1 0 2 -2 0  
 
COOLING  
YESTERDAY 9 10 -1 10  
MONTH TO DATE 99 80 19 83  
SINCE JUN 1 693 605 88 625  
SINCE JAN 1 773 675 98 718    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 5.6  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 6:00 AM  
LOWEST 41 12:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 97 1913  
MINIMUM TEMPERATURE (F) 66 51 1972  
 
SUNRISE AND SUNSET  
AUGUST 9 2024........SUNRISE 5:54 AM CDT SUNSET 7:59 PM CDT  
AUGUST 10 2024........SUNRISE 5:55 AM CDT SUNSET 7:58 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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