AFOS product CLISTL
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CDUS43 KLSX 190728
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
226 AM CDT SAT AUG 19 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 18 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         91    332 PM 106    1936  88      3       92       
  MINIMUM         67    542 AM  54    1963  70     -3       74       
  AVERAGE         79                        79      0       83      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             2.10 1902   0.09  -0.09     0.00    
  MONTH TO DATE    2.18                      1.80   0.38     5.21    
  SINCE JUN 1      6.28                     10.19  -3.91    14.87    
  SINCE JAN 1     29.18                     26.56   2.62    27.92    
                                                                     
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 JUN 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                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE JUN 1      0                         5     -5        0       
  SINCE JUL 1      0                         0      0        0       
                                                                     
 COOLING                                                             
  YESTERDAY       14                        14      0       18       
  MONTH TO DATE  202                       260    -58      293       
  SINCE JUN 1   1214                      1061    153     1310       
  SINCE JAN 1   1466                      1235    231     1504       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    SW (220)      
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED     7.3                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.4                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    87           300 AM                                     
 LOWEST     38           300 PM                                     
 AVERAGE    63                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88       105      1962                    
                                             1936                    
 MINIMUM TEMPERATURE (F)   69        55      1953                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 19 2017........SUNRISE   619 AM CDT   SUNSET   750 PM CDT   
AUGUST 20 2017........SUNRISE   620 AM CDT   SUNSET   749 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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