726  
CDUS43 KLOT 112133  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT WED SEP 11 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 11 2024
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 87 2:09 PM 95 1952 77 10 70  
MINIMUM 59 5:55 AM 42 1993 59 0 61  
AVERAGE 73 68 5 66  
 
PRECIPITATION (IN)  
TODAY 0.00 2.37 2000 0.11 -0.11 0.77  
MONTH TO DATE 0.04 1.23 -1.19 0.89  
SINCE SEP 1 0.04 1.23 -1.19 0.89  
SINCE JAN 1 26.90 27.94 -1.04 25.15  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 0 1 -1 0  
MONTH TO DATE 14 8 6 2  
SINCE SEP 1 14 8 6 2  
SINCE JUL 1 14 14 0 4  
 
COOLING  
TODAY 8 5 3 1  
MONTH TO DATE 42 63 -21 94  
SINCE SEP 1 42 63 -21 94  
SINCE JAN 1 1028 935 93 1028    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 3.2  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 6:00 AM  
LOWEST 28 2:00 PM  
AVERAGE 52  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 96 1952  
MINIMUM TEMPERATURE (F) 59 44 1955  
2014  
 
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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