First Blue Moon of August

The common phrase "once in a Blue Moon" is used colloquially to mean "a rare event." This August is one of those rare occasions in which there are two full moons within the same calendar month - something that happens about once every three years. The two full moons this August occur at exactly 9:28 pm MDT on August 1st and again at 7:58 pm MDT on August 31st. The next pairing will happen on July 1st and 31st of 2015 - in approximately three years.

The common phrase "once in a Blue Moon" is used colloquially to mean "a rare event." This August is one of those rare occasions in which there are two full moons within the same calendar month - something that happens about once every three years.
The common phrase "once in a Blue Moon" is used colloquially to mean "a rare event." This August is one of those rare occasions in which there are two full moons within the same calendar month - something that happens about once every three years.