256  
CDUS43 KLOT 300637  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
137 AM CDT THU SEP 30 2021  
   
...............................
 
 
...THE DU PAGE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 29 2021...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 3:14 PM 85 2014 70 14 59  
MINIMUM 50 6:07 AM 35 2018 48 2 41  
AVERAGE 67 59 8 50  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.69 0.09 -0.09 T  
MONTH TO DATE 0.93 2.90 -1.97 3.96  
SINCE SEP 1 0.93 2.90 -1.97 3.96  
SINCE JAN 1 17.34 26.27 -8.93 25.01  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 7 -7 15  
MONTH TO DATE 24 93 -69 97  
SINCE SEP 1 24 93 -69 97  
SINCE JUL 1 24 104 -80 101  
 
COOLING  
YESTERDAY 2 1 1 0  
MONTH TO DATE 124 87 37 48  
SINCE SEP 1 124 87 37 48  
SINCE JAN 1 1035 811 224 941    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 4.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
   
......................................................
 
 
THE DU PAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 86 2019  
MINIMUM TEMPERATURE (F) 48 35 2004  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2021.....SUNRISE 6:49 AM CDT SUNSET 6:36 PM CDT  
OCTOBER 1 2021.......SUNRISE 6:50 AM CDT SUNSET 6:34 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IL Page
The Nexlab IN Page Main Text Page