175  
CDUS43 KLOT 150637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT SAT MAY 15 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR MAY 14 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 71 2:18 PM 91 2013 70 1 73  
MINIMUM 40 4:28 AM 37 2000 48 -8 53  
AVERAGE 56 59 -3 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.69 0.14 -0.14 3.69  
MONTH TO DATE 0.82 2.05 -1.23 4.20  
SINCE MAR 1 2.63 7.46 -4.83 11.76  
SINCE JAN 1 3.79 9.97 -6.18 14.41  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 7 2 2  
MONTH TO DATE 184 127 57 209  
SINCE MAR 1 1327 1469 -142 1501  
SINCE JUL 1 6126 6246 -120 6091  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 6 10 -4 0  
SINCE MAR 1 16 16 0 1  
SINCE JAN 1 16 16 0 1    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 3.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 87 2001  
MINIMUM TEMPERATURE (F) 48 34 2016  
 
SUNRISE AND SUNSET  
MAY 15 2021...........SUNRISE 5:32 AM CDT SUNSET 8:07 PM CDT  
MAY 16 2021...........SUNRISE 5:32 AM CDT SUNSET 8:08 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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