The Full Moon Falls on Halloween This Year For the First Time Since 1944

October 30, 2020 at 3:54 pm

For the first time in 76 years, we’ll have a full blue moon on Halloween Day in 2020.

The moon will reach its peak fullness in all time zones on the planet on Halloween Day this year. It’s the first time that’s happened since WWII.

While we tend to associate Halloween with a spooky full moon, the two events occurring at the same time is actually pretty rare.

We are supposed to have a full moon on Halloween every 19 years, but because of a slight shift in the Metonic Cycle, it landed on November 1 in 1963, 1982 and 2001 (for most time zones), according to Farmer’s Almanac.

It will also be a “blue moon,” or the second full moon in the same month. Technically, all Halloween full moons are blue moons, as the 29.5 day lunar cycle requires all blue moons to happen on the 31st of a given month.

Blue moons only happen once in a blue moon, every 3 years or so, making 2020 special in another way – it has 13 full moons!

Luckily, we won’t have to wait another 76 years for another Halloween full moon. For the next century, we are back on track to have one every 19 years.