Snowy Night. Winter landscape with full Blue Moon.

If something happens “once in a blue moon” it happens very rarely, but it does happen and I see this idiom as an expression for a miracle. I love the phrase!

This month there actually will be a Blue Moon on December 31, New Year’s Eve. How magical this sounds! But, what is a Blue Moon?

Traditionally, the Farmers’ Almanac referred to the Blue Moon as an extra full moon that occurred in a season. A season normally had three full moons. If a season had four full moons, then the third of the four full moons was known as a blue moon. According to modern folklore, a Blue Moon is the second full moon in a calendar month and it’s this kind of modern Blue Moon that we’ll see this month.

Here’s a desktop wallpaper to put you in the mood for the Full Blue Moon. Snowy Night, a desktop picture with a magical, moonlit winter wonderland. Blue and white snow drifts, the full moon and a starry sky.

Save this wallpaper to your computer.

Tags: blue, desktop wallpaper, full moon, landscape, nature, peaceful, sky, stars, tranquil, white, winter