701  
CDUS43 KLOT 022159  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
459 PM CDT WED AUG 02 2023  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 2 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 85 2:50 PM 101 1991 84 1 90  
MINIMUM 68 5:08 AM 51 1985 66 2 68  
AVERAGE 77 75 2 79  
 
PRECIPITATION (IN)  
TODAY 0.00 5.63 1885 0.15 -0.15 0.00  
MONTH TO DATE 0.00 0.30 -0.30 T  
SINCE JUN 1 9.97 8.11 1.86 7.16  
SINCE JAN 1 22.93 22.76 0.17 23.06  
 
SNOWFALL (IN)  
TODAY 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 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 25 33 -8 7  
SINCE JUL 1 0 2 -2 0  
 
COOLING  
TODAY 12 10 2 14  
MONTH TO DATE 24 20 4 28  
SINCE JUN 1 566 545 21 585  
SINCE JAN 1 659 615 44 730    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 8.3  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 4:00 AM  
LOWEST 47 11:00 AM  
AVERAGE 59  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 98 1930  
1944  
1964  
MINIMUM TEMPERATURE (F) 66 48 1894  
 
SUNRISE AND SUNSET  
AUGUST 2 2023........SUNRISE 5:46 AM CDT SUNSET 8:09 PM CDT  
AUGUST 3 2023........SUNRISE 5:47 AM CDT SUNSET 8:08 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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