How often does a full moon fall on Haloween? i have googled and come up empty.
I want the stats.
When was the last? next?
Well, if you assume that full moon last one night, then it would be once every 29,5 Halloween. If we assume that moon is reasonably full during three consecutive nights, then approximately once every 10 Halloweens.
And of course, that applies to any day of the calendar, not just October 31st.