657  
CDUS43 KLOT 282133  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT SAT OCT 28 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR OCTOBER 28 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 50 2:07 PM 78 1999 57 -7 62  
MINIMUM 35 6:49 AM 21 1997 38 -3 36  
AVERAGE 43 47 -4 49  
 
PRECIPITATION (IN)  
TODAY 0.00 0.31 2021 0.09 -0.09 0.00  
MONTH TO DATE 2.63 2.76 -0.13 1.70  
SINCE SEP 1 5.40 5.76 -0.36 4.05  
SINCE JAN 1 27.85 29.13 -1.28 28.78  
 
DEGREE DAYS  
HEATING  
TODAY 22 18 4 16  
MONTH TO DATE 262 351 -89 380  
SINCE SEP 1 309 451 -142 478  
SINCE JUL 1 312 462 -150 478  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 27 9 18 9  
SINCE SEP 1 128 97 31 131  
SINCE JAN 1 802 821 -19 954    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 7:00 AM  
LOWEST 61 1:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 77 1999  
MINIMUM TEMPERATURE (F) 37 27 2005  
2010  
 
SUNRISE AND SUNSET  
OCTOBER 28 2023.......SUNRISE 7:20 AM CDT SUNSET 5:53 PM CDT  
OCTOBER 29 2023.......SUNRISE 7:22 AM CDT SUNSET 5:51 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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