How Often is there a Full Moon on Halloween : Rare Halloween Blue Moon

For more than half a century, whenever two full Moons appear in a single month (which happens on average every 2 1/2 to 3 years), the second full Moon is christened a “Blue Moon.”

Fun fact: Any time the Moon is technically “full” on October 31st (as it will be this year), it would also have to be a Blue Moon because the lunar cycle is only 29.5 days long.

How Often is there a Full Moon on Halloween

A full Moon on Halloween occurs roughly once every 19 years—a pattern known as the Metonic Cycle.

According to astronomers, we will all see a 100%-illuminated Halloween full Moon (after 2021) in the years  2039, 2058, 2077, and 2096 (note the 19-year pattern). The good news is that even if the Moon is a day or two away from 100% full on any particular Halloween, it can still serve the purpose for a spooky backdrop since most people can’t tell the difference between a 98% illuminated Moon and a 100% “full” Moon (Cases in point: November 2, 2029, and October 30, 2031). Plan your costumes accordingly!

BEST DIY ADULT HALLOWEEN COSTUMES

1. BOB ROSS COSTUME

This Bob Ross costume is hiding in your closet now! All you likely need to buy is the curly, brown afro wig. Check out this post for the step by step DIY happy little tree tutorial.

2. DIY CASETTE TAPE COSTUME

Whip up a cassette tape costume with a peice of cardboard and a little paint! What will you call your mix tape?

3. GAME BOY COSTUME

If you were born in the 80’s, you had a Game Boy! The game boy dress costume was originally made by Here and There Vintage shop on Etsy. If you’re interested in a DIY version, check out this DIY Game Boy baby costume.

4. TETRIS COSTUMES

Tetris came out in June of 1984 and it brings back all the 80s nostalgia. This 80’s costume is perfect for a group!

5. MARY POPPINS AND BERT COSTUMES

These amazing Bert and Mary Poppins costume DIY were put together with thrift store finds and pieces on hand. Check out this post to find out how Rachel made the DIY chimney sweep.