178  
CDUS43 KLOT 260633  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT MON AUG 26 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 25 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 93 1:53 PM 95 1959 82 11 82  
1991  
2003  
MINIMUM 74 5:38 AM 47 1917 64 10 71  
AVERAGE 84 73 11 77  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.88 1972 0.13 -0.13 0.00  
MONTH TO DATE 1.50 3.45 -1.95 1.33  
SINCE JUN 1 10.49 11.26 -0.77 11.30  
SINCE JAN 1 25.76 25.91 -0.15 24.26  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1941 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 19 8 11 12  
MONTH TO DATE 220 232 -12 273  
SINCE JUN 1 814 757 57 815  
SINCE JAN 1 894 827 67 908    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 9.5  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 12:00 AM  
LOWEST 41 2:00 PM  
AVERAGE 60  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 1953  
1973  
MINIMUM TEMPERATURE (F) 64 47 1887  
 
SUNRISE AND SUNSET  
AUGUST 26 2024........SUNRISE 6:12 AM CDT SUNSET 7:34 PM CDT  
AUGUST 27 2024........SUNRISE 6:13 AM CDT SUNSET 7:32 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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