549  
CDUS43 KLOT 072133  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT SUN SEP 07 2025  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 7 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1928 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 70 2:20 PM 101 1939 79 -9 67  
MINIMUM 49 5:36 AM 46 1986 62 -13 51  
AVERAGE 60 71 -11 59  
 
PRECIPITATION (IN)  
TODAY 0.00 3.51 1998 0.10 -0.10 0.00  
MONTH TO DATE 0.06 0.75 -0.69 T  
SINCE SEP 1 0.06 0.75 -0.69 T  
SINCE JAN 1 24.88 24.78 0.10 29.47  
 
DEGREE DAYS  
HEATING  
TODAY 5 1 4 6  
MONTH TO DATE 19 2 17 6  
SINCE SEP 1 19 2 17 6  
SINCE JUL 1 21 6 15 6  
 
COOLING  
TODAY 0 6 -6 0  
MONTH TO DATE 11 48 -37 34  
SINCE SEP 1 11 48 -37 34  
SINCE JAN 1 1152 1004 148 1157    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 6.7  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 6:00 AM  
LOWEST 34 2:00 PM  
AVERAGE 54  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 98 1933  
MINIMUM TEMPERATURE (F) 62 45 1986  
 
SUNRISE AND SUNSET  
SEPTEMBER 7 2025.....SUNRISE 6:23 AM CDT SUNSET 7:14 PM CDT  
SEPTEMBER 8 2025.....SUNRISE 6:24 AM CDT SUNSET 7:12 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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