365  
CDUS43 KLOT 050640  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
140 AM CDT SAT AUG 05 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 4 2023...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 85 1:52 PM 95 2018 83 2 85  
MINIMUM 65 3:20 AM 53 2000 63 2 66  
AVERAGE 75 73 2 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.46 1998 0.13 -0.13 0.00  
MONTH TO DATE T 0.55 -0.55 0.12  
SINCE JUN 1 10.79 7.82 2.97 6.23  
SINCE JAN 1 21.32 20.08 1.24 20.91  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 29 37 -8 13  
SINCE JUL 1 0 4 -4 0  
 
COOLING  
YESTERDAY 10 8 2 11  
MONTH TO DATE 36 32 4 49  
SINCE JUN 1 452 479 -27 529  
SINCE JAN 1 503 535 -32 650    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 6.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 5:00 AM  
LOWEST 46 3:00 PM  
AVERAGE 71  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 92 2018  
MINIMUM TEMPERATURE (F) 63 49 2020  
 
SUNRISE AND SUNSET  
AUGUST 5 2023........SUNRISE 5:51 AM CDT SUNSET 8:07 PM CDT  
AUGUST 6 2023........SUNRISE 5:52 AM CDT SUNSET 8:06 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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