Spring. Spring, also known as springtime, is one of the four temperate seasons, succeeding winter and preceding summer.
There are various technical definitions of spring, but local usage of the term varies according to local climate, cultures and customs. When it is spring in the Northern Hemisphere, it is autumn in the Southern Hemisphere and vice versa.
At the spring equinox, days and nights are approximately twelve hours long, with daytime length increasing and nighttime length decreasing as the season progresses until the Summer Solstice in June and December. Spring and springtime refer to the season, and also to ideas of rebirth, rejuvenation, renewal, resurrection and regrowth.
Subtropical and tropical areas have climates better described in terms of other seasons, e.g. dry or wet, monsoonal or cyclonic.
Meteorologists generally define four seasons in many climatic areas: spring, summer, autumn, and winter. These are determined by the values of their average temperatures on a monthly basis, with each season lasting three months. The three warmest months are by definition summer, the three coldest months are winter, and the intervening gaps are spring and autumn. Meteorological spring can therefore, start on different dates in different regions. In the US and UK, spring months are March, April, and May. In Australia and New Zealand, spring begins on 22nd or 23rd of September and e