SEA-TAC, WASHINGTON

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

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DAILY WEATHER AVERAGE - 4 MARCH

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	6.8 ^°C	10.4 ^°C	3.5 ^°C	14.4 ^°C (2005)	-0.6 ^°C (2015)
Dewpoint	2.4 ^°C	4.7 ^°C	-0.1 ^°C	10 ^°C (2014)	-7.2 ^°C (2015)
Humidity	76.6 ^%	92.3 ^%	55.1 ^%		26 ^% (2002)
Barometer	1016.6 ^hPa	1019.6 ^hPa	1012.9 ^hPa	1030.1 ^hPa (2008)	994.2 ^hPa (1996)
Wind Speed	13 ^km/h	24.1 ^km/h		35.2 ^km/h (2011)
Wind Gust		41.4 ^km/h		55.5 ^km/h (2009)
Precipitation	6.86 ^mm			30.99 ^mm (2014)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	SSE (157.9 °)

Weather Element	Total
Heating Degree Days	11.4 (Base 18.3)
Growing Degree Days	0.7 (Base 10)

Total Years on Record: 22

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