922  
CDUS43 KLOT 042140  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
440 PM CDT SAT SEP 04 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 4 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 74 2:59 PM 93 2012 79 -5  
MINIMUM 66 6:04 AM 49 2000 58 8  
2020  
AVERAGE 70 69 1  
 
PRECIPITATION (IN)  
TODAY 0.00 2.41 2008 0.10 -0.10  
MONTH TO DATE 0.01 0.40 -0.39  
SINCE SEP 1 0.01 0.40 -0.39  
SINCE JAN 1 16.42 23.77 -7.35  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1  
MONTH TO DATE 0 4 -4  
SINCE SEP 1 0 4 -4  
SINCE JUL 1 0 15 -15  
 
COOLING  
TODAY 5 5 0  
MONTH TO DATE 12 20 -8  
SINCE SEP 1 12 20 -8  
SINCE JAN 1 923 744 179    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 7.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 92 1999  
MINIMUM TEMPERATURE (F) 58 42 1997  
 
SUNRISE AND SUNSET  
SEPTEMBER 4 2021.....SUNRISE 6:22 AM CDT SUNSET 7:21 PM CDT  
SEPTEMBER 5 2021.....SUNRISE 6:23 AM CDT SUNSET 7:19 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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