AFOS product CLISTL
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CDUS43 KLSX 220740
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
237 AM CDT TUE MAY 22 2018


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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 21 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         81    504 PM  93    1941  78      3       73       
  MINIMUM         65    508 AM  38    1883  59      6       59       
  AVERAGE         73                        68      5       66      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.12          2.00 1957   0.16  -0.04     0.00    
  MONTH TO DATE    3.55                      3.11   0.44     5.02    
  SINCE MAR 1     12.95                     10.12   2.83    19.63    
  SINCE JAN 1     19.43                     14.76   4.67    21.92    
                                                                     
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                        64    -64       54       
  SINCE MAR 1   1134                       922    212      661       
  SINCE JUL 1   4605                      4520     85     3394       
                                                                     
 COOLING                                                             
  YESTERDAY        8                         5      3        1       
  MONTH TO DATE  183                        69    114      118       
  SINCE MAR 1    196                       115     81      191       
  SINCE JAN 1    196                       115     81      193       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (250)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    SW (240)      
  AVERAGE WIND SPEED     6.0                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.8                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST   100           500 AM                                     
 LOWEST     69           400 PM                                     
 AVERAGE    85                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   78        94      1925                    
 MINIMUM TEMPERATURE (F)   59        37      1883                    

                                                                     
SUNRISE AND SUNSET                                                   
MAY 22 2018...........SUNRISE   544 AM CDT   SUNSET   813 PM CDT   
MAY 23 2018...........SUNRISE   543 AM CDT   SUNSET   814 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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