219  
CDUS46 KSEW 090117  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
617 PM PDT WED MAY 08 2024  
   
...............................  
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 8 2024  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 64 435 PM 84 1969 65 -1 66  
1987  
MINIMUM 42 518 AM 36 1999 47 -5 50  
AVERAGE 53 56 -3 58  
 
PRECIPITATION (IN)  
TODAY 0.00 0.54 2014 0.06 -0.06 0.01  
MONTH TO DATE 0.28 0.55 -0.27 0.79  
SINCE OCT 1 30.83 33.38 -2.55 27.55  
SINCE JAN 1 13.68 17.44 -3.76 12.66  
 
SNOWFALL (IN)  
TODAY 0.0 T 1953 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 0.3 8.1  
SINCE JUL 1 0.3 8.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 12 9 3 7  
MONTH TO DATE 106 79 27 74  
SINCE MAR 1 1075 1048 27 1152  
SINCE JUL 1 3965 4095 -130 4239  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 1 -1 0  
SINCE JAN 1 0 1 -1 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (20)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 7.2  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 76 600 AM  
LOWEST 34 300 PM  
AVERAGE 55  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 86 2020  
MINIMUM TEMPERATURE (F) 48 38 1955  
1985  
1999  
 
SUNRISE AND SUNSET  
MAY 8 2024...........SUNRISE 541 AM PDT SUNSET 831 PM PDT  
MAY 9 2024...........SUNRISE 539 AM PDT SUNSET 833 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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