AFOS product CLISTL
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CDUS43 KLSX 200736
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
234 AM CDT SAT MAY 20 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 19 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         85    256 PM  94    1996  77      8       72       
  MINIMUM         58   1133 PM  40    1894  58      0       48       
  AVERAGE         72                        68      4       60      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.52          2.14 1915   0.15   0.37     0.00    
  MONTH TO DATE    3.70                      2.80   0.90     3.11    
  SINCE MAR 1     18.31                      9.81   8.50     9.89    
  SINCE JAN 1     20.60                     14.45   6.15    11.49    
                                                                     
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 MAR 1      1.8                       2.7   -0.9      0.3     
  SINCE JUL 1      3.2                      17.7  -14.5     10.9     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         2     -2        5       
  MONTH TO DATE   54                        60     -6       83       
  SINCE MAR 1    661                       918   -257      654       
  SINCE JUL 1   3394                      4516  -1122     3484       
                                                                     
 COOLING                                                             
  YESTERDAY        7                         5      2        0       
  MONTH TO DATE  112                        59     53       29       
  SINCE MAR 1    185                       105     80       89       
  SINCE JAN 1    187                       105     82       89       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    48   HIGHEST WIND DIRECTION    SW (210)      
  HIGHEST GUST SPEED    68   HIGHEST GUST DIRECTION    SW (220)      
  AVERAGE WIND SPEED    10.1                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  THUNDERSTORM                                                       
  HEAVY RAIN                                                         
  RAIN                                                               
  LIGHT RAIN                                                         
  FOG                                                                

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    80          1100 PM                                     
 LOWEST     48           200 PM                                     
 AVERAGE    64                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   77        93      1902                    
 MINIMUM TEMPERATURE (F)   58        41      1981                    
                                             1894                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 20 2017...........SUNRISE   545 AM CDT   SUNSET   812 PM CDT   
MAY 21 2017...........SUNRISE   544 AM CDT   SUNSET   812 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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