when does it start getting warmer

It usually starts getting noticeably warmer around early to mid‑spring, but the exact timing depends a lot on where you live and what you consider “warm.”

Key idea

• In much of the Northern Hemisphere, days start getting longer and temperatures begin trending up after the spring (vernal) equinox in March, with the most consistent warmth typically arriving between late March and May depending on latitude and local climate.

• In many U.S. regions, “springlike” temperatures that feel clearly warmer (think light‑jacket weather and above) show up in late March or early April in the South, and closer to late April or May in the Northeast, Midwest, and interior West.

How different places define “warmer”

• Astronomical spring starts at the March equinox in the Northern Hemisphere and the September equinox in the Southern Hemisphere, when daylight starts to increase more rapidly and the ground and air warm up.

• Meteorological spring is defined as March–May in the U.S. and U.K., September–November in places like Australia and New Zealand, which is when average temperatures historically climb from winter into early summer ranges.

Rough timelines by region (Northern Hemisphere)

• Warmer days can show up as early as February in milder, snow‑free climates, especially at lower latitudes, but these are often “false springs” with cold snaps still possible.

• In many temperate areas, consistent mild days (around 10–20°C / 50–68°F) tend to settle in between late March and late April, while some colder or more northerly locations may not feel reliably warm until May.

Climate change and earlier warmth

• Over the last several decades, spring has warmed in the vast majority of analyzed U.S. cities, with average spring temperatures rising by about 2–2.5°F since 1970, which means warm days are now coming earlier and more often than they used to.

• Many locations now see at least a week more warmer‑than‑normal spring days compared with the 1970s, so the “it’s finally getting warm” feeling tends to arrive sooner on the calendar than in past generations.

If you share your nearest city or region, a more specific “when it starts getting warmer” window can be narrowed down for your area.