AFOS product CLISTL
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CDUS43 KLSX 170729
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
228 AM CDT THU MAY 17 2018


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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 16 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         83    259 PM  93    2001  76      7       90       
  MINIMUM         63    614 AM  39    1875  57      6       71       
  AVERAGE         73                        67      6       81      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          5.59 1995   0.15  -0.15     0.00    
  MONTH TO DATE    1.38                      2.35  -0.97     3.18    
  SINCE MAR 1     10.78                      9.36   1.42    17.79    
  SINCE JAN 1     17.26                     14.00   3.26    20.08    
                                                                     
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      1.6                       2.7   -1.1      1.8     
  SINCE JUL 1      7.1                      17.7  -10.6      3.2     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         2     -2        0       
  MONTH TO DATE    0                        54    -54       54       
  SINCE MAR 1   1134                       912    222      661       
  SINCE JUL 1   4605                      4510     95     3394       
                                                                     
 COOLING                                                             
  YESTERDAY        8                         4      4       16       
  MONTH TO DATE  145                        46     99       74       
  SINCE MAR 1    158                        92     66      147       
  SINCE JAN 1    158                        92     66      149       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     N (10)       
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NW (320)      
  AVERAGE WIND SPEED     5.2                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.5                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           100 AM                                     
 LOWEST     49           500 PM                                     
 AVERAGE    71                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   77        94      1996                    
 MINIMUM TEMPERATURE (F)   58        40      1973                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 17 2018...........SUNRISE   548 AM CDT   SUNSET   809 PM CDT   
MAY 18 2018...........SUNRISE   547 AM CDT   SUNSET   810 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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