The 'Worm Moon' is a name given to the full moon that occurs in March. It is the third full moon of the meteorological spring, which begins on March 1st and ends on May 31st.

Historical and Cultural Meaning:

- Native American Names:

The name "Worm Moon" comes from Native American tradition, where it was associated with the emergence of earthworms from the thawed ground as the weather warms up in early spring, leading to an increase in fishing activity.

Other Native American tribes used various names for this full moon, such as the "Sugar Moon," referring to the time when maple trees were tapped to collect sap for making sugar. Some also called it the "Crow Moon," referencing the cawing of crows as they return from their winter roosting grounds.

- Farmers' Almanacs:

The term "Worm Moon" gained widespread popularity in the 1930s after it was listed in the Maine Farmers' Almanac. The Farmers' Almanac's listings of moon names were based on Native American traditions and colonial folklore.

- Present-day Usage:

Today, the name "Worm Moon" continues to be used to mark the March full moon, particularly in North America. However, it is recognized as a cultural and traditional name rather than an official astronomical term.

Still Marks the Start of Spring?

Astronomically, the start of spring is marked by the vernal equinox, which occurs around March 20th or 21st each year. This is the day when the Sun crosses the celestial equator, and day and night are approximately the same length.

In modern times, the Worm Moon may not always precisely align with the beginning of spring as the date of the full moon varies from year to year. However, its proximity to the start of the season still holds cultural and symbolic significance, connecting us to the rhythms of nature and the traditional markers of seasonal change.