This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Spring Months gathers the three months the Gregorian calendar's customary northern hemisphere convention places in spring, March, April and May. Each member's own season correspondence fact names that convention explicitly and also notes the same three months fall in autumn south of the equator.
March holds the spring equinox itself, anchoring Nowruz, the Persian new year, the modern Pagan festival of Ostara and the computation of Easter, while its fixed feasts include the Annunciation on the twenty fifth and Japan's Hinamatsuri doll festival on the third. Easter falls in April more often than in any other month, and the fixed spring festivals of Vaisakhi and Songkran arrive together in its middle days. May holds Beltane on its first day, the Buddhist festival of Vesak at its full moon in most years, the Marian devotions of the Catholic month of May, and the Baha'i Declaration of the Bab on the twenty third.
Read together the three months trace one seasonal arc anchored at its opening by the equinox that several traditions independently use to fix a new year or renewal festival, Nowruz and Ostara among them, continuing through Easter's most frequent month, to May's cluster of first day and full moon festivals honoring fertility and renewal. The recurring theme is beginning: several unrelated traditions each treat this season as the natural point to mark a new cycle.