959  
CDUS43 KLOT 012134  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT WED OCT 01 2025  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 1 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 77 1:08 PM 92 1971 70 7 71  
MINIMUM 65 6:06 AM 32 1974 53 12 56  
AVERAGE 71 62 9 64  
 
PRECIPITATION (IN)  
TODAY 0.00 1.29 2016 0.11 -0.11 0.00  
MONTH TO DATE 0.00 0.11 -0.11 0.00  
SINCE SEP 1 0.56 2.88 -2.32 1.89  
SINCE JAN 1 25.38 26.91 -1.53 31.36  
 
DEGREE DAYS  
HEATING  
TODAY 0 5 -5 1  
MONTH TO DATE 0 5 -5 1  
SINCE SEP 1 21 64 -43 11  
SINCE JUL 1 23 68 -45 11  
 
COOLING  
TODAY 6 2 4 0  
MONTH TO DATE 6 2 4 0  
SINCE SEP 1 210 138 72 219  
SINCE JAN 1 1351 1094 257 1342    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 7:00 AM  
LOWEST 48 1:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 91 1971  
MINIMUM TEMPERATURE (F) 52 28 1974  
 
SUNRISE AND SUNSET  
OCTOBER 1 2025.......SUNRISE 6:48 AM CDT SUNSET 6:32 PM CDT  
OCTOBER 2 2025.......SUNRISE 6:49 AM CDT SUNSET 6:30 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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