139  
CDUS43 KLOT 122134  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT FRI MAY 12 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 12 2023...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 76 2:28 PM 91 2022 70 6 91  
MINIMUM 63 2:52 AM 30 2021 47 16 69  
AVERAGE 70 58 12 80  
 
PRECIPITATION (IN)  
TODAY 0.07 1.26 2016 0.14 -0.07 0.00  
MONTH TO DATE 0.40 1.76 -1.36 1.33  
SINCE MAR 1 4.68 7.17 -2.49 9.39  
SINCE JAN 1 9.72 9.68 0.04 11.65  
 
DEGREE DAYS  
HEATING  
TODAY 0 8 -8 0  
MONTH TO DATE 80 113 -33 119  
SINCE MAR 1 1368 1455 -87 1471  
SINCE JUL 1 5718 6232 -514 6032  
 
COOLING  
TODAY 5 1 4 15  
MONTH TO DATE 18 8 10 49  
SINCE MAR 1 29 14 15 53  
SINCE JAN 1 29 14 15 53    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 4.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 3:00 PM  
LOWEST 45 1:00 AM  
AVERAGE 69  
   
......................................................
 
 
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 2023...........SUNRISE 5:36 AM CDT SUNSET 8:03 PM CDT  
MAY 13 2023...........SUNRISE 5:35 AM CDT SUNSET 8:04 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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