AFOS product CLISTL
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CDUS43 KLSX 100727
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
226 AM CDT WED MAY 10 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 9 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         88    408 PM  92    1934  74     14       73       
                                      1895                          
  MINIMUM         66    459 AM  35    1966  55     11       63       
  AVERAGE         77                        65     12       68      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          2.09 1949   0.14  -0.14     0.29    
  MONTH TO DATE    2.76                      1.29   1.47     0.34    
  SINCE MAR 1     17.37                      8.30   9.07     7.12    
  SINCE JAN 1     19.66                     12.94   6.72     8.72    
                                                                     
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                         3     -3        0       
  MONTH TO DATE   54                        34     20       28       
  SINCE MAR 1    661                       892   -231      599       
  SINCE JUL 1   3394                      4490  -1096     3429       
                                                                     
 COOLING                                                             
  YESTERDAY       12                         3      9        3       
  MONTH TO DATE   16                        21     -5       17       
  SINCE MAR 1     89                        67     22       77       
  SINCE JAN 1     91                        67     24       77       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    SW (240)      
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (250)      
  AVERAGE WIND SPEED    11.1                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.3                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    68           500 AM                                     
 LOWEST     36           500 PM                                     
 AVERAGE    52                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   75        91      1963                    
                                             1928                    
 MINIMUM TEMPERATURE (F)   55        31      1966                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 10 2017...........SUNRISE   554 AM CDT   SUNSET   803 PM CDT   
MAY 11 2017...........SUNRISE   553 AM CDT   SUNSET   804 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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