512  
CDUS43 KLOT 180634  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT SAT MAY 18 2024  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 17 2024...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 4:56 PM 85 1998 71 10 62  
2001  
MINIMUM 53 5:22 AM 32 2002 49 4 42  
AVERAGE 67 60 7 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.12 2020 0.13 -0.13 0.00  
MONTH TO DATE 2.07 2.46 -0.39 1.14  
SINCE MAR 1 8.84 7.87 0.97 5.42  
SINCE JAN 1 11.29 10.38 0.91 10.46  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 13  
MONTH TO DATE 71 147 -76 107  
SINCE MAR 1 1162 1489 -327 1395  
SINCE JUL 1 5223 6266 -1043 5745  
 
COOLING  
YESTERDAY 2 2 0 0  
MONTH TO DATE 9 14 -5 15  
SINCE MAR 1 17 20 -3 26  
SINCE JAN 1 17 20 -3 26    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 4.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1:00 AM  
LOWEST 28 5:00 PM  
AVERAGE 64  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 89 1998  
MINIMUM TEMPERATURE (F) 49 30 2002  
 
SUNRISE AND SUNSET  
MAY 18 2024...........SUNRISE 5:29 AM CDT SUNSET 8:10 PM CDT  
MAY 19 2024...........SUNRISE 5:29 AM CDT SUNSET 8:11 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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