AFOS product CLISTL
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CDUS43 KLSX 200737
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
236 AM CDT SUN AUG 20 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 19 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         92    421 PM 105    1962  88      4       89       
                                      1936                          
  MINIMUM         70    352 AM  55    1953  69      1       74       
  AVERAGE         81                        79      2       82      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.03 1914   0.09  -0.09     0.00    
  MONTH TO DATE    2.18                      1.89   0.29     5.21    
  SINCE JUN 1      6.28                     10.28  -4.00    14.87    
  SINCE JAN 1     29.18                     26.65   2.53    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       16                        14      2       17       
  MONTH TO DATE  218                       274    -56      310       
  SINCE JUN 1   1230                      1075    155     1327       
  SINCE JAN 1   1482                      1249    233     1521       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     N (350)      
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM            
  AVERAGE WIND SPEED     5.0                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.4                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    97           400 AM                                     
 LOWEST     44           400 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88       104      1962                    
 MINIMUM TEMPERATURE (F)   69        52      1950                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 20 2017........SUNRISE   620 AM CDT   SUNSET   749 PM CDT   
AUGUST 21 2017........SUNRISE   621 AM CDT   SUNSET   747 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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