AFOS product CLISTL
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067 
CDUS43 KLSX 290733
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
133 AM CST FRI DEC 29 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 28 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         21    840 PM  75    1928  40    -19       52       
  MINIMUM          9    506 AM  -8    1924  24    -15       32       
  AVERAGE         15                        32    -17       42      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.59 2015   0.08  -0.08     0.02    
  MONTH TO DATE    0.84                      2.58  -1.74     1.13    
  SINCE DEC 1      0.84                      2.58  -1.74     1.13    
  SINCE JAN 1     36.65                     40.70  -4.05    41.44    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           3.5  1943   0.2   -0.2      0.0     
  MONTH TO DATE    3.5                       3.9   -0.4      0.2     
  SINCE DEC 1      3.5                       3.9   -0.4      0.2     
  SINCE JUL 1      3.5                       4.6   -1.1      0.2     
  SNOW DEPTH       1                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       50                        33     17       23       
  MONTH TO DATE  776                       840    -64      862       
  SINCE DEC 1    776                       840    -64      862       
  SINCE JUL 1   1478                      1666   -188     1353       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   1959                      1646    313     2162       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    SE (140)      
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     E (90)       
  AVERAGE WIND SPEED     6.4                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.9                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    73           400 AM                                     
 LOWEST     51           300 PM                                     
 AVERAGE    62                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   40        70      1984                    
 MINIMUM TEMPERATURE (F)   24       -15      1880                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 29 2017......SUNRISE   719 AM CST   SUNSET   448 PM CST   
DECEMBER 30 2017......SUNRISE   719 AM CST   SUNSET   449 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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