973  
CDUS43 KLOT 200634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT THU MAY 20 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR MAY 19 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 75 3:11 PM 91 2012 72 3 58  
MINIMUM 64 7:59 AM 37 2002 50 14 52  
2008  
AVERAGE 70 61 9 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 1.37 0.15 -0.13 0.07  
MONTH TO DATE 1.04 2.75 -1.71 7.17  
SINCE MAR 1 2.85 8.16 -5.31 14.73  
SINCE JAN 1 4.01 10.67 -6.66 17.38  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 10  
MONTH TO DATE 202 159 43 234  
SINCE MAR 1 1345 1501 -156 1526  
SINCE JUL 1 6144 6278 -134 6116  
 
COOLING  
YESTERDAY 5 2 3 0  
MONTH TO DATE 11 18 -7 1  
SINCE MAR 1 21 24 -3 2  
SINCE JAN 1 21 24 -3 2    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION S (160)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 11.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 91 2012  
MINIMUM TEMPERATURE (F) 50 32 2002  
 
SUNRISE AND SUNSET  
MAY 20 2021...........SUNRISE 5:28 AM CDT SUNSET 8:12 PM CDT  
MAY 21 2021...........SUNRISE 5:27 AM CDT SUNSET 8:13 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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