PORT HEIDEN, ALASKA

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Elevation: 28 meters Latitude: 56 58N Longitude: 158 39W

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DAILY WEATHER AVERAGE - 25 AUGUST

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	10.3 ^°C	12.7 ^°C	8.1 ^°C	17 ^°C (2003)	3 ^°C (2011)
Dewpoint	4.9 ^°C	8.3 ^°C	5.4 ^°C	13 ^°C (2004)	2 ^°C (1997)
Humidity	75 ^%	89 ^%	62.2 ^%		4 ^% (1997)
Barometer	1008.5 ^hPa	1013.5 ^hPa	1005.1 ^hPa	1045 ^hPa (1995)	994.9 ^hPa (2008)
Wind Speed	17.5 ^km/h	30.3 ^km/h		61.2 ^km/h (1998)
Wind Gust		41.8 ^km/h		74 ^km/h (1998)
Precipitation	11.94 ^mm			18.29 ^mm (1998)

Weather Element	Average
Visibility	14.6 ^km
Wind Direction	SSW (203 °)

Weather Element	Total
Heating Degree Days	8 (Base 18.3)
Growing Degree Days	2.3 (Base 10)

Total Years on Record: 19

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