647  
CDUS43 KLOT 072134  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT TUE OCT 07 2025  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 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 68 12:28 AM 88 2007 68 0 69  
MINIMUM 60 9:56 AM 31 1935 50 10 50  
2000  
AVERAGE 64 59 5 60  
 
PRECIPITATION (IN)  
TODAY 1.29R 1.26 1930 0.10 1.19 0.00  
MONTH TO DATE 1.41 0.76 0.65 0.08  
SINCE SEP 1 1.97 3.53 -1.56 1.97  
SINCE JAN 1 26.79 27.56 -0.77 31.44  
 
DEGREE DAYS  
HEATING  
TODAY 1 7 -6 5  
MONTH TO DATE 1 44 -43 10  
SINCE SEP 1 22 103 -81 20  
SINCE JUL 1 24 107 -83 20  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 62 11 51 12  
SINCE SEP 1 266 147 119 231  
SINCE JAN 1 1407 1103 304 1354    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 111 11:00 AM  
LOWEST 52 3:00 PM  
AVERAGE 82  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 88 2007  
MINIMUM TEMPERATURE (F) 50 30 1952  
 
SUNRISE AND SUNSET  
OCTOBER 7 2025.......SUNRISE 6:55 AM CDT SUNSET 6:22 PM CDT  
OCTOBER 8 2025.......SUNRISE 6:56 AM CDT SUNSET 6:20 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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