SEA-TAC, WASHINGTON

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Elevation: 137 meters Latitude: 47 27N Longitude: 122 18W

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DAILY WEATHER AVERAGE - 19 MARCH

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	7.8 ^°C	11.6 ^°C	4.5 ^°C	16.1 ^°C (1998)	-1 ^°C (2012)
Dewpoint	3.7 ^°C	6 ^°C	1.1 ^°C	13.3 ^°C (1997)	-5.6 ^°C (2016)
Humidity	77.6 ^%	93.4 ^%	56 ^%		29 ^% (2010)
Barometer	1016.6 ^hPa	1020.7 ^hPa	1012.2 ^hPa	1029.8 ^hPa (2010)	989.5 ^hPa (2005)
Wind Speed	14.2 ^km/h	25.1 ^km/h		37 ^km/h (2014)
Wind Gust		40.4 ^km/h		50.1 ^km/h (1997)
Precipitation	6.6 ^mm			32.51 ^mm (1997)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	SSE (157.1 °)

Weather Element	Total
Heating Degree Days	10.3 (Base 18.3)
Growing Degree Days	1.7 (Base 10)

Total Years on Record: 22

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