Dover: Annual Weather Averages. August is the hottest month in Dover with an average temperature of 17Â°C (62Â°F) and the coldest is February at 4Â°C (38Â°F) with the most daily sunshine hours at 8 in August. Average Temperature: Dover. Loading weather data.
Satellite Island, wilderness surrounds. In the heart of the magnificent D'Entrecasteaux Channel, in the south of Tasmania, lies a small island of immense beauty.
Save. jewel image by Galyna Andrushko from Fotolia.com. A man-made glass created from the fused volcanic rock dust from Washington state's Mount St. Helens volcano, Helenite is also referred to as Mount St. Helens obsidian, emerald obsidianite and gaia stone.olor variations of helenite are obtained by adding trace elements of additional minerals; red helenite is created with gold, while blue helenite is made using cobalt or aquamarine silica chip. Natural color variations are also evident in ash from eruptions subsequent to the original 1980 blast.