012  
CDUS43 KLOT 122133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT MON MAY 12 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 12 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 82 12:13 PM 91 2022 70 12 82  
MINIMUM 46 2:45 AM 30 2021 47 -1 45  
AVERAGE 64 58 6 64  
 
PRECIPITATION (IN)  
TODAY 0.00 1.26 2016 0.14 -0.14 T  
MONTH TO DATE 0.71 1.76 -1.05 1.93  
SINCE MAR 1 5.61 7.17 -1.56 8.70  
SINCE JAN 1 7.18 9.68 -2.50 11.15  
 
DEGREE DAYS  
HEATING  
TODAY 1 8 -7 1  
MONTH TO DATE 106 113 -7 55  
SINCE MAR 1 1210 1455 -245 1146  
SINCE JUL 1 5530 6232 -702 5207  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 0 8 -8 2  
SINCE MAR 1 6 14 -8 10  
SINCE JAN 1 6 14 -8 10    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 5.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 5:00 AM  
LOWEST 32 12:00 PM  
AVERAGE 56  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 89 2022  
MINIMUM TEMPERATURE (F) 48 32 2013  
 
SUNRISE AND SUNSET  
MAY 12 2025...........SUNRISE 5:36 AM CDT SUNSET 8:04 PM CDT  
MAY 13 2025...........SUNRISE 5:34 AM CDT SUNSET 8:05 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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