how often does blood moon occur

A blood moon, which refers to a total lunar eclipse when the Moon appears reddish, typically occurs about 2 to 5 times per year, though not all lunar eclipses are total. Total lunar eclipses, which show the blood moon effect, happen roughly once every 6 months during an eclipse season, but the exact frequency can vary. Over a decade, about four to five total lunar eclipses can be seen from any single location on Earth, with the red color caused by Earth's atmosphere filtering sunlight and casting a reddish glow on the Moon during the eclipse.