704  
CDUS43 KLOT 110706  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
206 AM CDT WED SEP 11 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 10 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 82 4:20 PM 95 1983 78 4 83  
2013  
MINIMUM 58 6:11 AM 44 1943 59 -1 54  
AVERAGE 70 69 1 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.48 1922 0.10 -0.10 0.01  
MONTH TO DATE 0.04 1.12 -1.08 0.12  
SINCE SEP 1 0.04 1.12 -1.08 0.12  
SINCE JAN 1 26.90 27.83 -0.93 24.38  
 
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 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 14 7 7 2  
SINCE SEP 1 14 7 7 2  
SINCE JUL 1 14 13 1 4  
 
COOLING  
YESTERDAY 5 5 0 4  
MONTH TO DATE 34 58 -24 93  
SINCE SEP 1 34 58 -24 93  
SINCE JAN 1 1020 930 90 1027    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 5.9  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 5:00 AM  
LOWEST 24 5:00 PM  
AVERAGE 51  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 95 1952  
MINIMUM TEMPERATURE (F) 59 42 1993  
 
SUNRISE AND SUNSET  
SEPTEMBER 11 2024.....SUNRISE 6:28 AM CDT SUNSET 7:07 PM CDT  
SEPTEMBER 12 2024.....SUNRISE 6:29 AM CDT SUNSET 7:05 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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