017  
CDUS43 KLOT 150636  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT WED OCT 15 2025  
   
...............................  
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 14 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 69 1:06 PM 89 1975 64 5 58  
MINIMUM 60 5:44 AM 28 1937 47 13 44  
AVERAGE 65 56 9 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 5.20 2017 0.12 -0.12 0.06  
MONTH TO DATE 1.41 1.60 -0.19 0.14  
SINCE SEP 1 1.97 4.37 -2.40 2.03  
SINCE JAN 1 26.79 28.40 -1.61 31.50  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 10 -10 14  
MONTH TO DATE 38 105 -67 37  
SINCE SEP 1 59 164 -105 47  
SINCE JUL 1 61 168 -107 47  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 62 17 45 16  
SINCE SEP 1 266 153 113 235  
SINCE JAN 1 1407 1109 298 1358    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 9.6  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 5:00 AM  
LOWEST 65 12:00 PM  
AVERAGE 78  
   
......................................................  
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 88 1947  
MINIMUM TEMPERATURE (F) 47 29 1937  
 
SUNRISE AND SUNSET  
OCTOBER 15 2025.......SUNRISE 7:04 AM CDT SUNSET 6:09 PM CDT  
OCTOBER 16 2025.......SUNRISE 7:05 AM CDT SUNSET 6:08 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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