AFOS product CLISTL
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CDUS43 KLSX 200731
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
130 AM CST THU DEC 20 2018


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

...THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 19 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         58    100 PM  68    1976  41     17       53       
                                      1889                          
                                      1877                          
  MINIMUM         39    320 AM  -7    1983  26     13       35       
                                      1884                          
  AVERAGE         49                        34     15       44      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        T             1.49 1895   0.08  -0.08     0.00    
  MONTH TO DATE    2.11                      1.78   0.33     0.15    
  SINCE DEC 1      2.11                      1.78   0.33     0.15    
  SINCE JAN 1     40.73                     39.90   0.83    35.96    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0          12.0  1973   0.2   -0.2      0.0     
  MONTH TO DATE    1.7                       2.3   -0.6       T      
  SINCE DEC 1      1.7                       2.3   -0.6       T      
  SINCE JUL 1      6.9                       3.0    3.9       T      
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       16                        31    -15       21       
  MONTH TO DATE  494                       548    -54      441       
  SINCE DEC 1    494                       548    -54      441       
  SINCE JUL 1   1556                      1374    182     1143       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   2182                      1646    536     1959       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     S (170)      
  AVERAGE WIND SPEED     8.6                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.8                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    80          1000 PM                                     
 LOWEST     51           100 PM                                     
 AVERAGE    66                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   41        71      2013                    
 MINIMUM TEMPERATURE (F)   26       -10      1901                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 20 2018......SUNRISE   716 AM CST   SUNSET   443 PM CST   
DECEMBER 21 2018......SUNRISE   716 AM CST   SUNSET   443 PM CST   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




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