439  
CDUS43 KLOT 212136  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
436 PM CDT SUN APR 21 2024  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR APRIL 21 2024...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 57 2:57 PM 81 2001 62 -5 62  
MINIMUM 29R 5:29 AM 29 2011 40 -11 39  
2021  
AVERAGE 43 51 -8 51  
 
PRECIPITATION (IN)  
TODAY 0.00 0.35 2002 0.13 -0.13 0.00  
MONTH TO DATE 1.23 2.18 -0.95 1.90  
SINCE MAR 1 5.16 4.15 1.01 3.72  
SINCE JAN 1 7.61 6.66 0.95 8.76  
 
DEGREE DAYS  
HEATING  
TODAY 22 14 8 14  
MONTH TO DATE 321 377 -56 267  
SINCE MAR 1 1001 1227 -226 1097  
SINCE JUL 1 5062 6004 -942 5447  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 1 0 1 11  
SINCE MAR 1 1 2 -1 11  
SINCE JAN 1 1 2 -1 11    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 8.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 6:00 AM  
LOWEST 30 3:00 PM  
AVERAGE 54  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 81 2007  
MINIMUM TEMPERATURE (F) 40 27 2021  
 
SUNRISE AND SUNSET  
APRIL 21 2024.........SUNRISE 6:03 AM CDT SUNSET 7:41 PM CDT  
APRIL 22 2024.........SUNRISE 6:01 AM CDT SUNSET 7:42 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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