AFOS product CLISTL
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CDUS43 KLSX 170727
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
226 AM CDT MON SEP 17 2018


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

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 16 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         91    320 PM  98    1954  80     11       91       
                                      1927                          
  MINIMUM         68    421 AM  44    1966  61      7       66       
  AVERAGE         80                        70     10       79      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.78 1969   0.10  -0.10     0.00    
  MONTH TO DATE    1.60                      1.65  -0.05     0.07    
  SINCE SEP 1      1.60                      1.65  -0.05     0.07    
  SINCE JAN 1     32.28                     29.40   2.88    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                         5     -5        6       
  SINCE SEP 1      0                         5     -5        6       
  SINCE JUL 1      0                         6     -6        6       
                                                                     
 COOLING                                                             
  YESTERDAY       15                         6      9       14       
  MONTH TO DATE  194                       141     53       98       
  SINCE SEP 1    194                       141     53       98       
  SINCE JAN 1   1950                      1540    410     1700       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION     E (80)       
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     E (80)       
  AVERAGE WIND SPEED     3.0                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.2                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    84           400 AM                                     
 LOWEST     47           100 PM                                     
 AVERAGE    66                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   80        97      1931                    
 MINIMUM TEMPERATURE (F)   60        37      1937                    

                                                                     
SUNRISE AND SUNSET                                                   
SEPTEMBER 17 2018.....SUNRISE   645 AM CDT   SUNSET   706 PM CDT   
SEPTEMBER 18 2018.....SUNRISE   646 AM CDT   SUNSET   705 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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