AFOS product CLISTL
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CDUS43 KLSX 180734
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
233 AM CDT FRI AUG 18 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 17 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         88    205 PM 104    1936  88      0       89       
  MINIMUM         69    611 AM  55    1879  70     -1       72       
  AVERAGE         79                        79      0       81      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.08          1.89 1939   0.10  -0.02     0.00    
  MONTH TO DATE    2.18                      1.71   0.47     5.21    
  SINCE JUN 1      6.28                     10.10  -3.82    14.87    
  SINCE JAN 1     29.18                     26.47   2.71    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       16       
  MONTH TO DATE  188                       246    -58      275       
  SINCE JUN 1   1200                      1047    153     1292       
  SINCE JAN 1   1452                      1221    231     1486       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (250)      
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    SW (230)      
  AVERAGE WIND SPEED    11.6                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.6                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           200 AM                                     
 LOWEST     55           200 PM                                     
 AVERAGE    78                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   88       106      1936                    
 MINIMUM TEMPERATURE (F)   70        54      1963                    

                                                                     
SUNRISE AND SUNSET                                                   
AUGUST 18 2017........SUNRISE   618 AM CDT   SUNSET   752 PM CDT   
AUGUST 19 2017........SUNRISE   619 AM CDT   SUNSET   750 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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