Weather Service Report


430 
CDUS46 KSEW 130826
CLISEA

CLIMATE REPORT 
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT WED MAY 13 2026

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 12 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         82R   252 PM  82    2023  66     16       67       
  MINIMUM         52    526 AM  38    1964  48      4       45       
                                      1985                           
                                      2011                           
  AVERAGE         67                        57     10       56     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.01          0.71 1996   0.06  -0.05      T       
  MONTH TO DATE    0.01                      0.80  -0.79     0.02     
  SINCE OCT 1     33.46                     33.63  -0.17    26.53     
  SINCE JAN 1     16.68                     17.69  -1.01    13.13     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0          MM      MM                   0.0      
  MONTH TO DATE    0.0                                       0.0      
  SINCE OCT 1      3.0                                       2.3      
  SINCE JUL 1      3.0                                       2.3      
  SNOW DEPTH      MM                                                  

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         8     -8        9        
  MONTH TO DATE   58                       114    -56      104        
  SINCE MAR 1   1014                      1083    -69     1031        
  SINCE JUL 1   3764                      4130   -366     4188        

 COOLING                                                              
  YESTERDAY        2                         0      2        0        
  MONTH TO DATE    6                         0      6        0        
  SINCE MAR 1      6                         1      5        0        
  SINCE JAN 1      6                         1      5        0        
...................................................................


WIND (MPH)                                                            
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   W (250)       
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)       
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    SW (210)       
  AVERAGE WIND SPEED     7.9                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.7                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  LIGHT RAIN                                                          


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           500 AM                                      
 LOWEST     26           300 PM                                      
 AVERAGE    55                                                        

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   66        86      2023                      
 MINIMUM TEMPERATURE (F)   48        37      1956                      


SUNRISE AND SUNSET                                                    
MAY 13 2026...........SUNRISE   535 AM PDT   SUNSET   837 PM PDT     
MAY 14 2026...........SUNRISE   533 AM PDT   SUNSET   839 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