AFOS product CLISTL
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CDUS43 KLSX 170728
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
226 AM CDT THU AUG 17 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 16 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    204 PM 103    1936  88      3       87       
  MINIMUM         71   1159 PM  56    1992  70      1       73       
                                      1964                          
  AVERAGE         81                        79      2       80      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        1.92          2.35 1946   0.09   1.83      T      
  MONTH TO DATE    2.10                      1.61   0.49     5.21    
  SINCE JUN 1      6.20                     10.00  -3.80    14.87    
  SINCE JAN 1     29.10                     26.37   2.73    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       15       
  MONTH TO DATE  174                       232    -58      259       
  SINCE JUN 1   1186                      1033    153     1276       
  SINCE JAN 1   1438                      1207    231     1470       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    33   HIGHEST WIND DIRECTION     S (190)      
  HIGHEST GUST SPEED    42   HIGHEST GUST DIRECTION     S (190)      
  AVERAGE WIND SPEED    10.0                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.8                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           500 PM                                     
 LOWEST     59           200 PM                                     
 AVERAGE    80                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88       104      1936                    
 MINIMUM TEMPERATURE (F)   70        55      1879                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 17 2017........SUNRISE   617 AM CDT   SUNSET   753 PM CDT   
AUGUST 18 2017........SUNRISE   618 AM CDT   SUNSET   752 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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