MATTAWA, WASHINGTON

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

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DAILY WEATHER AVERAGE - 22 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-1.4 ^°C	1.7 ^°C	-4.4 ^°C	8.1 ^°C (2004)	-18.5 ^°C (2008)
Dewpoint	-3.4 ^°C	-1.7 ^°C	-5.8 ^°C	2.8 ^°C (2012)	-20.3 ^°C (1998)
Humidity	87.3 ^%	95.1 ^%	75.2 ^%		36 ^% (1998)
Barometer	1022 ^hPa	1025.4 ^hPa	1017.9 ^hPa	1043.7 ^hPa (1998)	996.6 ^hPa (1996)
Wind Speed	8.4 ^km/h	13.8 ^km/h		20.4 ^km/h (2003)
Precipitation	0.76 ^mm			0.76 ^mm (2012)

Weather Element	Average
Visibility	18.2 ^km
Wind Direction	WSW (237.4 °)

Weather Element	Total
Heating Degree Days	19.7 (Base 18.3)

Total Years on Record: 18

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