MATTAWA, WASHINGTON

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Elevation: 276 meters Latitude: 46 50N Longitude: 119 40W

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DAILY WEATHER AVERAGE - 21 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-0.4 ^°C	2.8 ^°C	-4.1 ^°C	10.9 ^°C (2004)	-18.1 ^°C (1998)
Dewpoint	-3.4 ^°C	-1.6 ^°C	-6 ^°C	5.3 ^°C (2009)	-22.6 ^°C (2011)
Humidity	81.9 ^%	93 ^%	66.8 ^%		34 ^% (2011)
Barometer	1020 ^hPa	1023.4 ^hPa	1016.3 ^hPa	1042.7 ^hPa (1998)	997.3 ^hPa (1996)
Wind Speed	9.7 ^km/h	16.4 ^km/h		29.6 ^km/h (2004)
Wind Gust		38.9 ^km/h		38.9 ^km/h (2009)
Precipitation	0.25 ^mm			0.25 ^mm (2012)

Weather Element	Average
Visibility	18.5 ^km
Wind Direction	WSW (242.5 °)

Weather Element	Total
Heating Degree Days	19 (Base 18.3)

Total Years on Record: 18

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