

This full Moon is in the middle of Nisan, which corresponds with Pesach or Passover.

In the Hebrew calendar the months change with the new Moon and full Moons fall in the middle of the lunar months. Earthworms in these areas now are mostly invasive species introduced from Europe and Asia. After these glaciers melted about 12,000 years ago the more northern forests grew back without earthworms. When glaciers covered the northern part of North America they wiped out the native earthworms. It makes sense that only the southern tribes called this the Worm Moon. The tribes more to the south called this the Worm Moon after the earthworm casts that appear as the ground thaws. Other northern names were the Crust Moon, because the snow cover becomes crusted from thawing by day and freezing by night, or the Sap (or Sugar) Moon as this is the time for tapping maple trees. The more northern tribes of the northeastern United States knew this as the Crow Moon, when the cawing of crows signaled the end of winter. According to this almanac, as the full Moon in March this is the Crow, Crust, Sap, Sugar, or Worm Moon. In the 1930s the Maine Farmer's Almanac began publishing American Indian Moon names for each month of the year. The Moon will appear full for about three days around this time, from Saturday morning through Monday night into early Tuesday morning. This will be on Monday morning from India's timezone eastward to the International Date Line. The next full Moon will be Sunday afternoon, March 28, 2021, appearing opposite the Sun in Earth-based longitude at 2:48 PM EDT. The Next Full Moon is the Worm, Crow, Crust, Sap, or Sugar Moon the Pesach, Passover, or Paschal Moon the Holi Festival Moon Medin or Madin Poya the Shab-e-Barat or Bara'at Night Moon and (by some definitions) a Supermoon.
