ROCK ISLAND, WASHINGTON

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Elevation: 1230 feet Latitude: 47 24N Longitude: 120 12W

WEATHER

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DAILY WEATHER AVERAGE - DECEMBER 13

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	30.9 ^°F	36.5 ^°F	26.2 ^°F	50 ^°F (1995)	7 ^°F (2000)
Dewpoint	25.9 ^°F	28.8 ^°F	22.2 ^°F	39.9 ^°F (2002)	5 ^°F (2015)
Humidity	83.1 ^%	92.3 ^%	67.5 ^%		44 ^% (1995)
Barometer	29.96 ⁱⁿ	30.13 ⁱⁿ	29.79 ⁱⁿ	30.58 ⁱⁿ (1997)	29.09 ⁱⁿ (2001)
Wind Speed	4 ^mph	12.1 ^mph		25.3 ^mph (1995)
Wind Gust		26.8 ^mph		36.8 ^mph (1995)
Precipitation	0.37 ⁱⁿ			0.91 ⁱⁿ (2006)

Weather Element	Average
Visibility	6.7 ^mi
Wind Direction	ESE (116 °)

Weather Element	Total
Heating Degree Days	33.7 (Base 18.3)

Total Years on Record: 21

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