838  
CDUS43 KLOT 050643  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
143 AM CDT SUN OCT 05 2025  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 4 2025
 
 
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)  
YESTERDAY  
MAXIMUM 89 3:08 PM 90 1951 69 20 72  
MINIMUM 67 6:07 AM 34 1989 51 16 61  
AVERAGE 78 60 18 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.89 1991 0.11 -0.11 0.08  
MONTH TO DATE 0.00 0.45 -0.45 0.08  
SINCE SEP 1 0.56 3.22 -2.66 1.97  
SINCE JAN 1 25.38 27.25 -1.87 31.44  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 6 -6 0  
MONTH TO DATE 0 23 -23 5  
SINCE SEP 1 21 82 -61 15  
SINCE JUL 1 23 86 -63 15  
 
COOLING  
YESTERDAY 13 2 11 2  
MONTH TO DATE 39 8 31 4  
SINCE SEP 1 243 144 99 223  
SINCE JAN 1 1384 1100 284 1346    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 9.3  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 4:00 AM  
LOWEST 30 4:00 PM  
AVERAGE 52  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 89 1997  
MINIMUM TEMPERATURE (F) 51 31 1980  
 
SUNRISE AND SUNSET  
OCTOBER 5 2025.......SUNRISE 6:52 AM CDT SUNSET 6:25 PM CDT  
OCTOBER 6 2025.......SUNRISE 6:54 AM CDT SUNSET 6:24 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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