369  
CDUS43 KLOT 172133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT MON MAY 17 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR MAY 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 69 2:54 PM 85 1998 71 -2  
2001  
MINIMUM 55 5:37 AM 32 2002 49 6  
AVERAGE 62 60 2  
 
PRECIPITATION (IN)  
TODAY 0.00 2.12 2020 0.13 -0.13  
MONTH TO DATE 0.86 2.46 -1.60  
SINCE MAR 1 2.67 7.87 -5.20  
SINCE JAN 1 3.83 10.38 -6.55  
 
DEGREE DAYS  
HEATING  
TODAY 3 6 -3  
MONTH TO DATE 202 147 55  
SINCE MAR 1 1345 1489 -144  
SINCE JUL 1 6144 6266 -122  
 
COOLING  
TODAY 0 2 -2  
MONTH TO DATE 6 14 -8  
SINCE MAR 1 16 20 -4  
SINCE JAN 1 16 20 -4    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SE (120)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 6.0  
 
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) 72 89 1998  
MINIMUM TEMPERATURE (F) 49 30 2002  
 
SUNRISE AND SUNSET  
MAY 17 2021...........SUNRISE 5:31 AM CDT SUNSET 8:09 PM CDT  
MAY 18 2021...........SUNRISE 5:30 AM CDT SUNSET 8:10 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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