099  
CDUS43 KLOT 120635  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT TUE SEP 12 2023  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 11 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1928 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 71 1:36 AM 95 1931 78 -7 74  
1952  
MINIMUM 60 5:04 AM 44 1940 61 -1 61  
1943  
AVERAGE 66 69 -3 68  
 
PRECIPITATION (IN)  
YESTERDAY 1.30 4.16 2000 0.08 1.22 1.40  
MONTH TO DATE 1.52 1.10 0.42 1.57  
SINCE SEP 1 1.52 1.10 0.42 1.57  
SINCE JAN 1 27.13 25.13 2.00 25.49  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 6 -6 0  
SINCE SEP 1 0 6 -6 0  
SINCE JUL 1 1 10 -9 0  
 
COOLING  
YESTERDAY 1 5 -4 3  
MONTH TO DATE 87 71 16 118  
SINCE SEP 1 87 71 16 118  
SINCE JAN 1 1049 1027 22 1390    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 10:00 PM  
LOWEST 49 3:00 AM  
AVERAGE 73  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 96 1939  
1952  
MINIMUM TEMPERATURE (F) 60 44 1940  
1955  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2023.....SUNRISE 6:28 AM CDT SUNSET 7:06 PM CDT  
SEPTEMBER 13 2023.....SUNRISE 6:29 AM CDT SUNSET 7:04 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