476  
CDUS43 KLOT 172133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT SAT JUL 17 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JULY 17 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 80 2:35 PM 97 2012 84 -4  
MINIMUM 62 4:19 AM 52 2014 64 -2  
AVERAGE 71 74 -3  
 
PRECIPITATION (IN)  
TODAY 0.00 0.90 2003 0.11 -0.11  
MONTH TO DATE 1.89 1.92 -0.03  
SINCE JUN 1 8.60 5.57 3.03  
SINCE JAN 1 13.75 17.83 -4.08  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0  
MONTH TO DATE 0 0 0  
SINCE JUN 1 11 33 -22  
SINCE JUL 1 0 0 0  
 
COOLING  
TODAY 6 9 -3  
MONTH TO DATE 118 149 -31  
SINCE JUN 1 368 324 44  
SINCE JAN 1 449 380 69    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 8.9  
 
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) 84 96 2012  
MINIMUM TEMPERATURE (F) 64 55 2004  
2017  
2018  
 
SUNRISE AND SUNSET  
JULY 17 2021..........SUNRISE 5:33 AM CDT SUNSET 8:25 PM CDT  
JULY 18 2021..........SUNRISE 5:34 AM CDT SUNSET 8:24 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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