311  
CDUS43 KLOT 230634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT WED AUG 23 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 22 2023...  
 
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)  
YESTERDAY  
MAXIMUM 86 3:00 PM 90 2007 82 4 82  
MINIMUM 63 3:31 AM 48 2004 61 2 58  
AVERAGE 75 71 4 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.70 2002 0.11 -0.11 0.00  
2002  
2014  
MONTH TO DATE 1.13 2.74 -1.61 2.93  
SINCE JUN 1 11.92 10.01 1.91 9.04  
SINCE JAN 1 22.45 22.27 0.18 23.72  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 29 37 -8 13  
SINCE JUL 1 0 4 -4 0  
 
COOLING  
YESTERDAY 10 6 4 5  
MONTH TO DATE 143 167 -24 162  
SINCE JUN 1 559 614 -55 642  
SINCE JAN 1 610 670 -60 763    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 6.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 11:00 PM  
LOWEST 65 3:00 PM  
AVERAGE 81  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 92 2012  
MINIMUM TEMPERATURE (F) 61 51 1997  
2005  
 
SUNRISE AND SUNSET  
AUGUST 23 2023........SUNRISE 6:09 AM CDT SUNSET 7:41 PM CDT  
AUGUST 24 2023........SUNRISE 6:10 AM CDT SUNSET 7:40 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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