511  
CDUS43 KLOT 100633  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1233 AM CST SUN JAN 10 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 9 2021...  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
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 36 1:00 PM 52 2002 31 5 49  
MINIMUM 22 9:04 PM -11 1999 15 7 22  
2014  
AVERAGE 29 23 6 36  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.17 0.04 -0.04 0.03  
MONTH TO DATE 0.27 0.43 -0.16 0.04  
SINCE DEC 1 2.12 2.15 -0.03 1.42  
SINCE JAN 1 0.27 0.43 -0.16 0.04  
 
DEGREE DAYS  
HEATING  
YESTERDAY 36 42 -6 29  
MONTH TO DATE 325 376 -51 297  
SINCE DEC 1 1398 1549 -151 1305  
SINCE JUL 1 2569 2803 -234 2681  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 6.9  
 
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) 31 54 2018  
MINIMUM TEMPERATURE (F) 15 -7 2010  
 
SUNRISE AND SUNSET  
JANUARY 10 2021.......SUNRISE 7:20 AM CST SUNSET 4:42 PM CST  
JANUARY 11 2021.......SUNRISE 7:20 AM CST SUNSET 4:43 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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