533  
CDUS43 KLOT 312239  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
439 PM CST SUN JAN 31 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR JANUARY 31 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 32 3:59 PM 56 2012 33 -1  
MINIMUM 30 8:28 AM -29 2019 16 14  
AVERAGE 31 24 7  
 
PRECIPITATION (IN)  
TODAY MM 0.43 2002 0.05 MM  
MONTH TO DATE 0.74 1.31 -0.57  
SINCE DEC 1 2.59 3.03 -0.44  
SINCE JAN 1 0.74 1.31 -0.57  
 
DEGREE DAYS  
HEATING  
TODAY 34 41 -7  
MONTH TO DATE 1188 1291 -103  
SINCE DEC 1 2261 2464 -203  
SINCE JUL 1 3432 3718 -286  
 
COOLING  
TODAY 0 0 0  
MONTH TO DATE 0 0 0  
SINCE DEC 1 0 0 0  
SINCE JAN 1 0 0 0    
............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 15 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 16.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
FOG  
HAZE  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 51 1999  
MINIMUM TEMPERATURE (F) 16 -2 2013  
 
SUNRISE AND SUNSET  
JANUARY 31 2021.......SUNRISE 7:06 AM CST SUNSET 5:07 PM CST  
FEBRUARY 1 2021......SUNRISE 7:05 AM CST SUNSET 5:08 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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