AFOS product CLISTL
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CDUS43 KLSX 210728
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO                                 
227 AM CDT FRI JUL 21 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR JULY 20 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        102    406 PM 110    1934  89     13       92       
  MINIMUM         83    607 AM  58    1929  71     12       73       
  AVERAGE         93                        80     13       83      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          3.70 1949   0.13  -0.13     0.97    
  MONTH TO DATE    0.27                      2.70  -2.43     6.72    
  SINCE JUN 1      2.99                      6.98  -3.99     8.01    
  SINCE JAN 1     25.89                     23.35   2.54    21.06    
                                                                     
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 JUN 1      0.0                       0.0    0.0      0.0     
  SINCE JUL 1      0.0                       0.0    0.0      0.0     
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE JUN 1      0                         5     -5        0       
  SINCE JUL 1      0                         0      0        0       
                                                                     
 COOLING                                                             
  YESTERDAY       28                        15     13       18       
  MONTH TO DATE  400                       300    100      310       
  SINCE JUN 1    809                       634    175      805       
  SINCE JAN 1   1061                       808    253      999       
..................................................................


WIND (MPH)                                                           
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED     9.2                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.5                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    65           500 AM                                     
 LOWEST     31           100 PM                                     
 AVERAGE    48                                                       

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

                                                                     
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   89       106      1901                    
 MINIMUM TEMPERATURE (F)   71        54      1970                    
                                             1944                    

                                                                     
SUNRISE AND SUNSET                                                   
JULY 21 2017..........SUNRISE   554 AM CDT   SUNSET   822 PM CDT   
JULY 22 2017..........SUNRISE   555 AM CDT   SUNSET   821 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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