The first day of spring occurs on the spring equinox, which is also known as the March equinox or the vernal equinox.

After a long, cold winter, the vernal equinox heralds the arrival of spring in the Northern Hemisphere. But have you heard ...

Most people define the beginning of spring as the spring equinox (also called the vernal equinox, for those of you who like ...

The first day of astronomical spring – or the vernal equinox – begins on March 20. The vernal equinox means day and night last about the same amount of time. Meteorological spring began on March 1.

By grouping the seasons by temperature, you’re also grouping the seasons more by common weather patterns. People often think of December as winter even though, technically, most of the month is fall.” ...