Weather Service Report


479 
CDUS46 KSEW 260829
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA                                  
129 AM PDT MON JUN 26 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 25 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         96R   322 PM  88    2006  72     24       72       
  MINIMUM         64   1159 PM  45    1956  53     11       56       
                                      1949                          
  AVERAGE         80                        62     18       64      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.00          0.39 2013   0.04  -0.04      T      
  MONTH TO DATE    1.52                      1.39   0.13     1.77    
  SINCE OCT 1     48.80                     34.23  14.57    47.23    
  SINCE JAN 1     28.40                     18.83   9.57    22.84    
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        0                         4     -4        1       
  MONTH TO DATE   91                       129    -38       89       
  SINCE JUN 1     91                       129    -38       89       
  SINCE JUL 1   4498                      4682   -184     3832       
                                                                     
 COOLING                                                             
  YESTERDAY       15                         1     14        0       
  MONTH TO DATE   35                        13     22       44       
  SINCE JUN 1     35                        13     22       44       
  SINCE JAN 1     54                        19     35       70       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   N (340)      
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     N (20)       
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     N (20)       
  AVERAGE WIND SPEED     6.9                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.5                                              

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

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    68          1100 PM                                     
 LOWEST     20           300 PM                                     
 AVERAGE    44                                                       

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

                                                                     
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   72        90      2006                    
 MINIMUM TEMPERATURE (F)   53        46      1965                    
                                             1960                    
                                             1949                    

                                                                     
SUNRISE AND SUNSET                                                   
JUNE 26 2017..........SUNRISE   514 AM PDT   SUNSET   910 PM PDT   
JUNE 27 2017..........SUNRISE   514 AM PDT   SUNSET   910 PM PDT   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




$$


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Western Regional Climate Center, wrcc@dri.edu