188  
CDUS43 KLOT 200631  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
131 AM CDT SAT MAY 20 2023  
   
...............................
 
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 19 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 74 1:49 PM 91 2012 72 2 85  
MINIMUM 50 11:49 PM 37 2002 50 0 50  
2008  
AVERAGE 62 61 1 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.07 1.37 2005 0.15 -0.08 0.00  
MONTH TO DATE 1.21 2.75 -1.54 1.56  
SINCE MAR 1 5.49 8.16 -2.67 9.62  
SINCE JAN 1 10.53 10.67 -0.14 11.88  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 6 -3 0  
MONTH TO DATE 118 159 -41 135  
SINCE MAR 1 1406 1501 -95 1487  
SINCE JUL 1 5756 6278 -522 6048  
 
COOLING  
YESTERDAY 0 2 -2 3  
MONTH TO DATE 15 18 -3 74  
SINCE MAR 1 26 24 2 78  
SINCE JAN 1 26 24 2 78    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 11.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 8:00 AM  
LOWEST 44 4:00 PM  
AVERAGE 66  
   
......................................................
 
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 91 2012  
MINIMUM TEMPERATURE (F) 50 32 2002  
 
SUNRISE AND SUNSET  
MAY 20 2023...........SUNRISE 5:28 AM CDT SUNSET 8:11 PM CDT  
MAY 21 2023...........SUNRISE 5:28 AM CDT SUNSET 8:12 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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