Frost dates by state

Median last spring and first fall frost dates for 6,653 weather stations in the lower 48 states and DC, from NOAA 1991–2020 climate normals. Pick a state, or type your ZIP code.

States and DC

Two dates that run the garden

The last spring frost tells you when tender plants can go out; the first fall frost ends their season. Both are medians, so in half of all years the last frost comes a little later. Alaska, Hawaii and Puerto Rico are not covered yet.