028  
CDUS43 KLOT 180637  
CLIPWK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT FRI SEP 18 2020  
 
   
...............................
 
 
   
..THE CHICAGO EXECUTIVE CLIMATE SUMMARY FOR SEPTEMBER 17 2020
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1996 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 69 1259 PM 92 2018 74 -5 76  
MINIMUM 56 824 PM 45 2014 54 2 66  
1999  
AVERAGE 63 64 -1 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.27 2015 0.09 -0.09 0.00  
MONTH TO DATE 3.00 1.78 1.22 4.24  
SINCE SEP 1 3.00 1.78 1.22 4.24  
SINCE JAN 1 28.19 24.26 3.93 33.56  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 3 -1 0  
MONTH TO DATE 16 29 -13 2  
SINCE SEP 1 16 29 -13 2  
SINCE JUL 1 16 39 -23 2  
 
COOLING  
YESTERDAY 0 2 -2 6  
MONTH TO DATE 67 62 5 98  
SINCE SEP 1 67 62 5 98  
SINCE JAN 1 1130 759 371 905    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 9.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
   
......................................................
 
 
 
THE CHICAGO EXECUTIVE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 89 2007  
MINIMUM TEMPERATURE (F) 53 42 2012  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2020.....SUNRISE 635 AM CDT SUNSET 655 PM CDT  
SEPTEMBER 19 2020.....SUNRISE 636 AM CDT SUNSET 653 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