AFOS product CLISTL
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CDUS43 KLSX 130732
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
231 AM CDT SAT MAY 13 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 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         74    504 PM  92    1956  75     -1       74       
  MINIMUM         59    600 AM  39    1960  56      3       56       
  AVERAGE         67                        66      1       65      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.18 2002   0.15  -0.15     0.04    
  MONTH TO DATE    3.18                      1.74   1.44     2.11    
  SINCE MAR 1     17.79                      8.75   9.04     8.89    
  SINCE JAN 1     20.08                     13.39   6.69    10.49    
                                                                     
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 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                         3     -3        0       
  MONTH TO DATE   54                        43     11       28       
  SINCE MAR 1    661                       901   -240      599       
  SINCE JUL 1   3394                      4499  -1105     3429       
                                                                     
 COOLING                                                             
  YESTERDAY        2                         3     -1        0       
  MONTH TO DATE   34                        30      4       29       
  SINCE MAR 1    107                        76     31       89       
  SINCE JAN 1    109                        76     33       89       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     N (10)       
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NE (40)       
  AVERAGE WIND SPEED     9.2                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.5                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    84           300 AM                                     
 LOWEST     41           500 PM                                     
 AVERAGE    63                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   75        91      1915                    
 MINIMUM TEMPERATURE (F)   56        40      1971                    
                                             1938                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 13 2017...........SUNRISE   551 AM CDT   SUNSET   805 PM CDT   
MAY 14 2017...........SUNRISE   550 AM CDT   SUNSET   806 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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