AFOS product CLISTL
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CDUS43 KLSX 100732
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
231 AM CDT SUN SEP 10 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 9 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         84    105 PM 101    1925  83      1       89       
  MINIMUM         60    424 AM  43    1883  64     -4       70       
  AVERAGE         72                        73     -1       80      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.05 1878   0.10  -0.10     1.44    
  MONTH TO DATE    0.01                      0.93  -0.92     1.95    
  SINCE SEP 1      0.01                      0.93  -0.92     1.95    
  SINCE JAN 1     30.31                     28.68   1.63    30.43    
                                                                     
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    6                         0      6        0       
  SINCE SEP 1      6                         0      6        0       
  SINCE JUL 1      6                         1      5        0       
                                                                     
 COOLING                                                             
  YESTERDAY        7                         9     -2       15       
  MONTH TO DATE   49                        90    -41      124       
  SINCE SEP 1     49                        90    -41      124       
  SINCE JAN 1   1651                      1489    162     1829       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (90)       
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     E (90)       
  AVERAGE WIND SPEED     5.5                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    84           400 AM                                     
 LOWEST     36           400 PM                                     
 AVERAGE    60                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   83        98      2013                    
                                             1983                    
                                             1933                    
 MINIMUM TEMPERATURE (F)   63        46      1976                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 10 2017.....SUNRISE   639 AM CDT   SUNSET   717 PM CDT   
SEPTEMBER 11 2017.....SUNRISE   640 AM CDT   SUNSET   716 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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