A blue moon is a rare event, but getting one on Halloween happens even less frequently.
When the full moon, like the Hunter Moon, is called a “blue moon,” it actually has noting do do with the color.
A blue moon means that it is the second time that a full moon appears in the same month. This is rare because there is normally about 29.5 days between full moon. In October 2020, full moons occur on October 1 and 31, meaning that we’ll see 13 full moons during this calendar year.
Blue moons are not common, but do occur every 2-3 year.
While the image of a full moon seems to go well with Halloween, it’s actually an even rarer occasion that only happens every 18-19 years.
The last time that we had full moon on Halloween was October 31, 2001, and we won’t see another Halloween full moon until 2039.
If you’re able to capture a good photo of tonight’s blue moon, the best way to share it with us is through the NBC4i mobile weather app.