066  
CDUS43 KLOT 070653  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
153 AM CDT TUE OCT 07 2025  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 6 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 83 12:53 PM 94 1963 67 16 75  
MINIMUM 63 11:59 PM 28 1952 49 14 54  
AVERAGE 73 58 15 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.40 1.57 1955 0.11 0.29 0.00  
MONTH TO DATE 0.40 0.67 -0.27 0.01  
SINCE SEP 1 0.89 3.86 -2.97 1.33  
SINCE JAN 1 23.34 30.57 -7.23 28.19  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1935 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 8 -8 0  
MONTH TO DATE 0 43 -43 8  
SINCE SEP 1 32 120 -88 23  
SINCE JUL 1 37 126 -89 23  
 
COOLING  
YESTERDAY 8 1 7 0  
MONTH TO DATE 55 6 49 9  
SINCE SEP 1 221 122 99 199  
SINCE JAN 1 1213 994 219 1185    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 8.7  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 11:00 PM  
LOWEST 49 3:00 PM  
AVERAGE 73  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 87 2007  
MINIMUM TEMPERATURE (F) 49 29 2001  
 
SUNRISE AND SUNSET  
OCTOBER 7 2025.......SUNRISE 6:55 AM CDT SUNSET 6:22 PM CDT  
OCTOBER 8 2025.......SUNRISE 6:57 AM CDT SUNSET 6:21 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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