Weather Service Report


044 
CDUS46 KSEW 220833
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA                                  
1232 AM PST SUN JAN 22 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 21 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         54    119 PM  62    1981  48      6       53       
  MINIMUM         40    819 AM  13    1962  37      3       45       
  AVERAGE         47                        42      5       49      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.05          1.64 1954   0.17  -0.12     1.15    
  MONTH TO DATE    4.09                      3.95   0.14     4.45    
  SINCE OCT 1     24.49                     19.35   5.14    28.84    
  SINCE JAN 1      4.09                      3.95   0.14     4.45    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY       MM             1.5  1949                   0.0     
  MONTH TO DATE    3.0                                        T      
  SINCE OCT 1      4.0                                        T      
  SINCE JUL 1      4.0                                        T      
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY       18                        22     -4       16       
  MONTH TO DATE  606                       490    116      474       
  SINCE DEC 1   1436                      1245    191     1151       
  SINCE JUL 1   2287                      2428   -141     2162       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    0                         0      0        0       
  SINCE DEC 1      0                         0      0        0       
  SINCE JAN 1      0                         0      0        0       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION  SE (150)      
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (170)      
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     S (160)      
  AVERAGE WIND SPEED     4.0                                         

                                                                     
SKY COVER                                                            
  AVERAGE SKY COVER 0.9                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    96           500 AM                                     
 LOWEST     50           100 PM                                     
 AVERAGE    73                                                       

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

                                                                     
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   48        60      1981                    
 MINIMUM TEMPERATURE (F)   37        19      1962                    

                                                                     
SUNRISE AND SUNSET                                                   
JANUARY 22 2017.......SUNRISE   746 AM PST   SUNSET   456 PM PST   
JANUARY 23 2017.......SUNRISE   745 AM PST   SUNSET   458 PM PST   

                                                                    
-  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