05/28/2026
If you only clean your comforter once in a blue moon… it’s about that time. 😉
A “Once in a Blue Moon” event occurs on May 31, 2026, when the second Full Moon of the month rises—commonly known as a Blue Moon 🔵
A Blue Moon is the second Full Moon to occur in a calendar month -- typically, there's only one! It takes our Moon about 29.5 days to complete one cycle of phases (from New Moon to New Moon), so if a Full Moon occurs on the first of a month, there will be a second Full Moon—a Blue Moon—at the end of the month, too 🔵
Turns out, Blue Moons happen every 30 months on average., which is about every two and a half years. So maybe “Once in a Blue Moon” isn’t so rare after all! Learn more: Almanac.com/what-blue-moon