AFOS product CLISTL
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CDUS43 KLSX 130730
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
229 AM CDT WED SEP 13 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 12 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         79    301 PM  98    1956  82     -3       83       
                                      1936                          
                                      1897                          
  MINIMUM         59    638 AM  44    1940  62     -3       60       
  AVERAGE         69                        72     -3       72      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.01          2.10 1949   0.11  -0.10     0.00    
  MONTH TO DATE    0.02                      1.24  -1.22     3.36    
  SINCE SEP 1      0.02                      1.24  -1.22     3.36    
  SINCE JAN 1     30.32                     28.99   1.33    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                         1      5        0       
  SINCE SEP 1      6                         1      5        0       
  SINCE JUL 1      6                         2      4        0       
                                                                     
 COOLING                                                             
  YESTERDAY        4                         8     -4        7       
  MONTH TO DATE   58                       114    -56      141       
  SINCE SEP 1     58                       114    -56      141       
  SINCE JAN 1   1660                      1513    147     1846       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     N (20)       
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NE (30)       
  AVERAGE WIND SPEED    10.0                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    80           600 AM                                     
 LOWEST     32           300 PM                                     
 AVERAGE    56                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   81       100      1939                    
 MINIMUM TEMPERATURE (F)   62        43      1975                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 13 2017.....SUNRISE   641 AM CDT   SUNSET   712 PM CDT   
SEPTEMBER 14 2017.....SUNRISE   642 AM CDT   SUNSET   711 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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