025  
CDUS43 KLOT 290634  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT TUE JUL 29 2025  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR JULY 28 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 93 4:09 PM 100 1941 85 8 83  
1983  
MINIMUM 77 11:45 PM 53 1981 68 9 70  
AVERAGE 85 76 9 77  
 
PRECIPITATION (IN)  
YESTERDAY T 1.25 1981 0.12 -0.12 0.22  
MONTH TO DATE 6.05 3.19 2.86 6.24  
SINCE JUN 1 11.42 7.20 4.22 9.68  
SINCE JAN 1 20.99 19.68 1.31 25.66  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 9 24 -15 3  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 20 11 9 12  
MONTH TO DATE 406 323 83 303  
SINCE JUN 1 730 545 185 625  
SINCE JAN 1 781 627 154 738    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 AM  
LOWEST 46 8:00 PM  
AVERAGE 68  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 101 1941  
MINIMUM TEMPERATURE (F) 68 50 1928  
1981  
 
SUNRISE AND SUNSET  
JULY 29 2025..........SUNRISE 5:42 AM CDT SUNSET 8:12 PM CDT  
JULY 30 2025..........SUNRISE 5:43 AM CDT SUNSET 8:11 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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