AFOS product CLISTL
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CDUS43 KLSX 160735
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
131 AM CST FRI DEC 16 2016


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

...THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 15 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         21    844 PM  76    1948  42    -21       49       
  MINIMUM         15    718 AM  -5    1901  27    -12       44       
  AVERAGE         18                        34    -16       47      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.76 1992   0.09  -0.09      T      
  MONTH TO DATE    0.30                      1.45  -1.15     1.13    
  SINCE DEC 1      0.30                      1.45  -1.15     1.13    
  SINCE JAN 1     40.61                     39.57   1.04    50.63    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0           6.9  2007   0.1   -0.1      0.0     
  MONTH TO DATE    T                         1.7   -1.7       T      
  SINCE DEC 1      T                         1.7   -1.7       T      
  SINCE JUL 1      T                         2.4   -2.4       T      
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       47                        31     16       18       
  MONTH TO DATE  478                       424     54      245       
  SINCE DEC 1    478                       424     54      245       
  SINCE JUL 1    969                      1250   -281      807       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1   2162                      1646    516     1873       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NW (310)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    NW (310)      
  AVERAGE WIND SPEED     8.6                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.7                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    53           500 AM                                     
 LOWEST     31           400 PM                                     
 AVERAGE    42                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   42        70      1889                    
 MINIMUM TEMPERATURE (F)   26        -8      1989                    

                                                                     
SUNRISE AND SUNSET                                                   
DECEMBER 16 2016......SUNRISE   713 AM CST   SUNSET   441 PM CST   
DECEMBER 17 2016......SUNRISE   714 AM CST   SUNSET   442 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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