When Is The First Day Of Spring In Maine 2024. The first day of spring (march equinox or vernal equinox) is when the sun shines directly on the celestial equator passing from south to north and the length of day. On the first day of spring, the length of day and night is about the same, lasting around 12 hours each.

Do you want to enjoy everything that spring in maine has to offer? As the growing season approaches, the days get longer, the weather begins to warm up, and the nights start being less cold.