AFOS product CLISTL
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CDUS43 KLSX 210738
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
238 AM CDT FRI APR 21 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR APRIL 20 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         83    247 PM  89    1987  69     14       71       
  MINIMUM         58   1159 PM  28    1904  49      9       60       
  AVERAGE         71                        59     12       66      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          1.84 1966   0.13  -0.13     0.22    
  MONTH TO DATE    2.73                      2.41   0.32     1.79    
  SINCE MAR 1      6.97                      5.73   1.24     4.08    
  SINCE JAN 1      9.26                     10.37  -1.11     5.68    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           5.5  1904   0.1   -0.1      0.0     
  MONTH TO DATE    0.0                       0.4   -0.4      0.0     
  SINCE MAR 1      1.8                       2.7   -0.9      0.3     
  SINCE JUL 1      3.2                      17.7  -14.5     10.9     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         8     -8        0       
  MONTH TO DATE   86                       210   -124      189       
  SINCE MAR 1    553                       798   -245      562       
  SINCE JUL 1   3286                      4396  -1110     3392       
                                                                     
 COOLING                                                             
  YESTERDAY        6                         2      4        1       
  MONTH TO DATE   62                        22     40       17       
  SINCE MAR 1     68                        29     39       25       
  SINCE JAN 1     70                        29     41       25       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (250)      
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    SW (240)      
  AVERAGE WIND SPEED    12.9                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.6                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    64           200 AM                                     
 LOWEST     43           100 PM                                     
 AVERAGE    54                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   69        89      1965                    
                                             1902                    
 MINIMUM TEMPERATURE (F)   49        32      1904                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL 21 2017.........SUNRISE   616 AM CDT   SUNSET   744 PM CDT   
APRIL 22 2017.........SUNRISE   615 AM CDT   SUNSET   745 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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