AFOS product CLISTL
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CDUS43 KLSX 220733
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
232 AM CDT TUE AUG 22 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 21 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         93   1126 AM 104    2003  88      5       82       
  MINIMUM         78    608 AM  50    1950  69      9       63       
                                      1940                          
  AVERAGE         86                        78      8       73      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             2.07 1944   0.09  -0.09     0.00    
  MONTH TO DATE    2.18                      2.08   0.10     5.21    
  SINCE JUN 1      6.28                     10.47  -4.19    14.87    
  SINCE JAN 1     29.18                     26.84   2.34    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       21                        13      8        8       
  MONTH TO DATE  258                       301    -43      330       
  SINCE JUN 1   1270                      1102    168     1347       
  SINCE JAN 1   1522                      1276    246     1541       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     N (350)      
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NW (330)      
  AVERAGE WIND SPEED     8.1                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.6                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    85           200 AM                                     
 LOWEST     60          1100 AM                                     
 AVERAGE    73                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88       103      1936                    
 MINIMUM TEMPERATURE (F)   69        55      1950                    
                                             1875                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 22 2017........SUNRISE   622 AM CDT   SUNSET   746 PM CDT   
AUGUST 23 2017........SUNRISE   623 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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