651  
CDUS43 KLOT 090634  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
134 AM CDT WED OCT 09 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 8 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 74 3:10 PM 88 1997 66 8 57  
MINIMUM 50 6:25 AM 27 1987 48 2 45  
AVERAGE 62 57 5 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.26 1884 0.11 -0.11 0.00  
MONTH TO DATE 0.01 0.89 -0.88 0.32  
SINCE SEP 1 1.33 4.08 -2.75 3.68  
SINCE JAN 1 28.19 30.79 -2.60 27.94  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM 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 3 9 -6 14  
MONTH TO DATE 18 60 -42 34  
SINCE SEP 1 33 137 -104 47  
SINCE JUL 1 33 143 -110 49  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 9 8 1 44  
SINCE SEP 1 199 124 75 199  
SINCE JAN 1 1185 996 189 1133    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 11:00 PM  
LOWEST 28 2:00 PM  
AVERAGE 53  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 86 1949  
2010  
MINIMUM TEMPERATURE (F) 48 30 2000  
 
SUNRISE AND SUNSET  
OCTOBER 9 2024.......SUNRISE 6:58 AM CDT SUNSET 6:19 PM CDT  
OCTOBER 10 2024.......SUNRISE 6:59 AM CDT SUNSET 6:17 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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