906  
CDUS43 KLOT 162138  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT FRI MAY 16 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 16 2025...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 86 2:59 PM 88 2001 71 15 75  
MINIMUM 56 2:15 AM 34 2011 49 7 48  
AVERAGE 71 60 11 62  
 
PRECIPITATION (IN)  
TODAY 0.00 0.80 2002 0.14 -0.14 0.00  
MONTH TO DATE 0.71 2.33 -1.62 2.07  
SINCE MAR 1 5.61 7.74 -2.13 8.84  
SINCE JAN 1 7.18 10.25 -3.07 11.29  
 
DEGREE DAYS  
HEATING  
TODAY 0 7 -7 3  
MONTH TO DATE 106 141 -35 71  
SINCE MAR 1 1210 1483 -273 1162  
SINCE JUL 1 5530 6260 -730 5223  
 
COOLING  
TODAY 6 1 5 0  
MONTH TO DATE 27 12 15 7  
SINCE MAR 1 33 18 15 15  
SINCE JAN 1 33 18 15 15    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 14.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 3:00 AM  
LOWEST 23 3:00 PM  
AVERAGE 48  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 85 1998  
2001  
MINIMUM TEMPERATURE (F) 49 32 2002  
 
SUNRISE AND SUNSET  
MAY 16 2025...........SUNRISE 5:32 AM CDT SUNSET 8:08 PM CDT  
MAY 17 2025...........SUNRISE 5:31 AM CDT SUNSET 8:09 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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