ROCK ISLAND, WASHINGTON

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Elevation: 375 meters Latitude: 47 24N Longitude: 120 12W

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DAILY WEATHER AVERAGE - 18 FEBRUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	2 ^°C	6.4 ^°C	-1.6 ^°C	11.6 ^°C (1996)	-12.2 ^°C (2006)
Dewpoint	-2.4 ^°C	-0.3 ^°C	-4.7 ^°C	10.5 ^°C (1996)	-20.6 ^°C (2006)
Humidity	74.8 ^%	89.5 ^%	56.6 ^%		21 ^% (2006)
Barometer	1015.9 ^hPa	1020 ^hPa	1011.9 ^hPa	1034.5 ^hPa (2006)	989.5 ^hPa (2016)
Wind Speed	6.6 ^km/h	23 ^km/h		179.6 ^km/h (1997)
Wind Gust		47.5 ^km/h		57.5 ^km/h (2007)
Precipitation	4.32 ^mm			13.72 ^mm (1999)

Weather Element	Average
Visibility	14 ^km
Wind Direction	SE (130.8 °)

Weather Element	Total
Heating Degree Days	15.9 (Base 18.3)

Total Years on Record: 22

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