AFOS product CLISTL
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CDUS43 KLSX 020730
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
229 AM CDT SAT SEP 2 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 1 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         77    217 PM 104    2011  86     -9       82       
                                      1984                          
  MINIMUM         60   1159 PM  49    1967  67     -7       63       
                                      1949                          
  AVERAGE         69                        76     -7       73      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          4.70 1931   0.10  -0.10     0.00    
  MONTH TO DATE    0.00                      0.10  -0.10     0.00    
  SINCE SEP 1      0.00                      0.10  -0.10     0.00    
  SINCE JAN 1     30.30                     27.85   2.45    28.48    
                                                                     
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      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 SEP 1      0                         0      0        0       
  SINCE JUL 1      0                         1     -1        0       
                                                                     
 COOLING                                                             
  YESTERDAY        4                        11     -7        8       
  MONTH TO DATE    4                        11     -7        8       
  SINCE SEP 1      4                        11     -7        8       
  SINCE JAN 1   1606                      1410    196     1713       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     N (20)       
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     N (20)       
  AVERAGE WIND SPEED    10.1                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.6                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           400 AM                                     
 LOWEST     49           600 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   85       101      2011                    
                                             1953                    
 MINIMUM TEMPERATURE (F)   66        50      1967                    
                                             1965                    
                                             1949                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER  2 2017.....SUNRISE   632 AM CDT   SUNSET   730 PM CDT   
SEPTEMBER  3 2017.....SUNRISE   633 AM CDT   SUNSET   728 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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