669  
CDUS43 KLOT 280637  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT WED AUG 28 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 27 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 99R 3:26 PM 97 1948 81 18 75  
1953  
1973  
MINIMUM 74 7:55 PM 47 1982 64 10 61  
AVERAGE 87 72 15 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.64 1.59 1923 0.13 0.51 0.00  
MONTH TO DATE 2.14 3.71 -1.57 1.33  
SINCE JUN 1 11.13 11.52 -0.39 11.30  
SINCE JAN 1 26.40 26.17 0.23 24.26  
 
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 22 8 14 3  
MONTH TO DATE 265 248 17 281  
SINCE JUN 1 859 773 86 823  
SINCE JAN 1 939 843 96 916    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 39 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 52 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 8.6  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 11:00 PM  
LOWEST 46 4:00 PM  
AVERAGE 70  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 1953  
1955  
MINIMUM TEMPERATURE (F) 63 42 1986  
 
SUNRISE AND SUNSET  
AUGUST 28 2024........SUNRISE 6:14 AM CDT SUNSET 7:31 PM CDT  
AUGUST 29 2024........SUNRISE 6:15 AM CDT SUNSET 7:29 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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