AFOS product CLISTL
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CDUS43 KLSX 180727
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
226 AM CDT TUE SEP 18 2018


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

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 17 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         94    239 PM  97    1931  80     14       82       
  MINIMUM         72    617 AM  37    1937  60     12       71       
  AVERAGE         83                        70     13       77      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.25 1968   0.10  -0.10      T      
  MONTH TO DATE    1.60                      1.75  -0.15     0.07    
  SINCE SEP 1      1.60                      1.75  -0.15     0.07    
  SINCE JAN 1     32.28                     29.50   2.78    30.37    
                                                                     
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 SEP 1      0.0                       0.0    0.0      0.0     
  SINCE JUL 1      T                         0.0    0.0      0.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         1     -1        0       
  MONTH TO DATE    0                         6     -6        6       
  SINCE SEP 1      0                         6     -6        6       
  SINCE JUL 1      0                         7     -7        6       
                                                                     
 COOLING                                                             
  YESTERDAY       18                         6     12       12       
  MONTH TO DATE  212                       147     65      110       
  SINCE SEP 1    212                       147     65      110       
  SINCE JAN 1   1968                      1546    422     1712       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    SW (240)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED     5.2                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           400 AM                                     
 LOWEST     39           100 PM                                     
 AVERAGE    66                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   79        97      1925                    
 MINIMUM TEMPERATURE (F)   60        42      1973                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 18 2018.....SUNRISE   646 AM CDT   SUNSET   705 PM CDT   
SEPTEMBER 19 2018.....SUNRISE   647 AM CDT   SUNSET   703 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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