Late spring usually means the last part of the spring season: roughly mid‑May to late June in the Northern Hemisphere, and mid‑November to late December in the Southern Hemisphere.

What “late spring” usually means

  • In everyday use and gardening guides, late spring is the final stretch before summer, after the last frosts and before real heat kicks in.
  • In the Northern Hemisphere, this is often placed around mid‑May through the summer solstice in late June.
  • In the Southern Hemisphere, it mirrors those months: mid‑November to late December.

Month-by-month view (Northern Hemisphere)

  • Early spring: roughly March.
  • Mid spring: roughly April.
  • Late spring: mostly May and the first part of June, up until around June 20–21.

Why definitions vary

  • There is no single “official” global definition; some use meteorological seasons (spring = March–May), others use astronomical dates (equinox to solstice), and gardeners often define late spring as the period after the last frost but before sustained summer heat.
  • Local climate matters: in colder regions late spring conditions arrive later; in warmer regions they may arrive earlier even though the calendar month is the same.

A handy rule of thumb: “late spring” is when days are long, frost risk is basically gone, plants are growing fast, but it doesn’t yet feel like full summer.

Information gathered from public forums or data available on the internet and portrayed here.