AFOS product CLISTL
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CDUS43 KLSX 190729
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
228 AM CDT FRI MAY 19 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 18 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         91    456 PM  94    1996  77     14       69       
  MINIMUM         72    514 AM  39    2002  58     14       49       
  AVERAGE         82                        67     15       59      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.38 1890   0.15  -0.15     0.00    
  MONTH TO DATE    3.18                      2.65   0.53     3.11    
  SINCE MAR 1     17.79                      9.66   8.13     9.89    
  SINCE JAN 1     20.08                     14.30   5.78    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        6       
  MONTH TO DATE   54                        58     -4       78       
  SINCE MAR 1    661                       916   -255      649       
  SINCE JUL 1   3394                      4514  -1120     3479       
                                                                     
 COOLING                                                             
  YESTERDAY       17                         4     13        0       
  MONTH TO DATE  105                        54     51       29       
  SINCE MAR 1    178                       100     78       89       
  SINCE JAN 1    180                       100     80       89       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     S (200)      
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION     S (200)      
  AVERAGE WIND SPEED    11.0                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.4                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    79           500 AM                                     
 LOWEST     32           400 PM                                     
 AVERAGE    56                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   77        94      1996                    
 MINIMUM TEMPERATURE (F)   58        40      1894                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 19 2017...........SUNRISE   546 AM CDT   SUNSET   811 PM CDT   
MAY 20 2017...........SUNRISE   545 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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