This combination of a full moon on Friday the 13th is a rare occurrence that only happens every 20 to 30 years. And, since it's September, this particular full moon is the "Harvest Moon." It's called that because it is the full moon closest to the autumnal equinox on September 23rd, according to the Farmers’ Almanac. The Almanac states that the last time there was a “nationwide” full moon on Friday the 13th was October 13th, 2000, and it won’t happen again until August 13th, 2049. Tonight's Harvest Moon is not technically a nationwide moon.

To make this Friday even more special, the Almanac says the full moon will appear about 14 percent smaller and won't be as bright. Some people call it a "micro moon."

No matter what the size, full moons tend to have a bad rap, as some associate them with lunatics coming out at night and doing crazy things. Then, there's Friday the 13th, which superstitious people think is an unlucky day. Almost a third of American adults are superstitious, according to a new survey by YouGov. If you can put all this nonsense aside and remember how rare this trifecta (or triple threat) truly is; then, get outside and… howl at the moon. Hopefully, the weather will cooperate and we will have a clear view.