AFOS product CLISTL
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CDUS43 KLSX 160727
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
226 AM CDT SAT SEP 16 2017


................................... 

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 15 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         90    329 PM 101    1939  81      9       88       
  MINIMUM         64    601 AM  45    2007  61      3       70       
                                      1961                          
  AVERAGE         77                        71      6       79      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.05 1914   0.11  -0.11      T      
  MONTH TO DATE    0.07                      1.55  -1.48     3.36    
  SINCE SEP 1      0.07                      1.55  -1.48     3.36    
  SINCE JAN 1     30.37                     29.30   1.07    31.84    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           0.0  2015   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                         1     -1        0       
  MONTH TO DATE    6                         4      2        0       
  SINCE SEP 1      6                         4      2        0       
  SINCE JUL 1      6                         5      1        0       
                                                                     
 COOLING                                                             
  YESTERDAY       12                         7      5       14       
  MONTH TO DATE   84                       135    -51      182       
  SINCE SEP 1     84                       135    -51      182       
  SINCE JAN 1   1686                      1534    152     1887       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (160)      
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     S (180)      
  AVERAGE WIND SPEED     8.2                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.1                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    87           500 AM                                     
 LOWEST     36           100 PM                                     
 AVERAGE    62                                                       

..........................................................

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        98      1954                    
                                             1927                    
 MINIMUM TEMPERATURE (F)   61        44      1966                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 16 2017.....SUNRISE   644 AM CDT   SUNSET   708 PM CDT   
SEPTEMBER 17 2017.....SUNRISE   645 AM CDT   SUNSET   706 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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