509  
CDUS43 KLOT 302138  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT FRI MAY 30 2025  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 30 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 76 2:03 PM 90 2010 76 0 72  
MINIMUM 49 4:22 AM 36 2021 54 -5 41  
AVERAGE 63 65 -2 57  
 
PRECIPITATION (IN)  
TODAY 0.00 1.64 2004 0.12 -0.12 0.00  
MONTH TO DATE 1.59 4.21 -2.62 3.42  
SINCE MAR 1 6.49 9.62 -3.13 10.19  
SINCE JAN 1 8.06 12.13 -4.07 12.64  
 
DEGREE DAYS  
HEATING  
TODAY 2 3 -1 8  
MONTH TO DATE 227 208 19 87  
SINCE MAR 1 1331 1550 -219 1178  
SINCE JUL 1 5651 6327 -676 5239  
 
COOLING  
TODAY 0 3 -3 0  
MONTH TO DATE 27 45 -18 46  
SINCE MAR 1 33 51 -18 54  
SINCE JAN 1 33 51 -18 54    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 5.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 4:00 AM  
LOWEST 40 3:00 PM  
AVERAGE 65  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 90 2023  
MINIMUM TEMPERATURE (F) 54 36 2003  
 
SUNRISE AND SUNSET  
MAY 30 2025...........SUNRISE 5:21 AM CDT SUNSET 8:21 PM CDT  
MAY 31 2025...........SUNRISE 5:21 AM CDT SUNSET 8:21 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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