340  
CDUS43 KLOT 040632  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT SAT SEP 04 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 3 2021...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 74 10:28 AM 90 1999 79 -5 87  
2012  
2015  
MINIMUM 56 5:49 AM 50 2017 58 -2 57  
AVERAGE 65 69 -4 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.97 0.10 -0.09 0.00  
MONTH TO DATE 0.01 0.30 -0.29 0.25  
SINCE SEP 1 0.01 0.30 -0.29 0.25  
SINCE JAN 1 16.42 23.67 -7.25 21.30  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 3 -3 0  
SINCE SEP 1 0 3 -3 0  
SINCE JUL 1 0 14 -14 4  
 
COOLING  
YESTERDAY 0 5 -5 7  
MONTH TO DATE 7 15 -8 20  
SINCE SEP 1 7 15 -8 20  
SINCE JAN 1 918 739 179 913    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SE (150)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 5.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 93 2012  
MINIMUM TEMPERATURE (F) 58 49 2000  
2020  
 
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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