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
- AlabamaLast frost Jan 31 – Apr 11118 stations
- ArizonaLast frost Jan 4 – Jun 23171 stations
- ArkansasLast frost Mar 10 – Apr 15112 stations
- CaliforniaLast frost Jan 1 – Jun 14288 stations
- ColoradoLast frost Apr 14 – Jun 21210 stations
- ConnecticutLast frost Apr 5 – May 1123 stations
- DelawareLast frost Mar 29 – Apr 117 stations
- District of ColumbiaLast frost Mar 24 – Apr 93 stations
- FloridaLast frost Jan 20 – Mar 21103 stations
- GeorgiaLast frost Feb 8 – Apr 26125 stations
- IdahoLast frost Apr 2 – Jun 22127 stations
- IllinoisLast frost Apr 2 – May 2170 stations
- IndianaLast frost Mar 29 – May 2117 stations
- IowaLast frost Apr 10 – May 8148 stations
- KansasLast frost Apr 4 – May 9176 stations
- KentuckyLast frost Mar 27 – May 297 stations
- LouisianaLast frost Jan 22 – Mar 3097 stations
- MaineLast frost Apr 21 – Jun 282 stations
- MarylandLast frost Mar 22 – May 943 stations
- MassachusettsLast frost Apr 4 – May 1767 stations
- MichiganLast frost Apr 17 – Jun 7206 stations
- MinnesotaLast frost Apr 15 – Jun 5176 stations
- MississippiLast frost Feb 12 – Apr 992 stations
- MissouriLast frost Mar 24 – Apr 27169 stations
- MontanaLast frost Apr 30 – Jun 18216 stations
- NebraskaLast frost Apr 15 – May 30184 stations
- NevadaLast frost Jan 5 – Jun 16108 stations
- New HampshireLast frost Apr 21 – May 3154 stations
- New JerseyLast frost Mar 26 – May 148 stations
- New MexicoLast frost Mar 9 – Jun 19175 stations
- New YorkLast frost Mar 26 – Jun 2176 stations
- North CarolinaLast frost Mar 1 – May 16187 stations
- North DakotaLast frost May 2 – May 24123 stations
- OhioLast frost Apr 8 – May 10130 stations
- OklahomaLast frost Mar 15 – Apr 26191 stations
- OregonLast frost Jan 31 – Jun 11171 stations
- PennsylvaniaLast frost Mar 30 – May 24159 stations
- Rhode IslandLast frost Apr 7 – May 311 stations
- South CarolinaLast frost Feb 4 – Apr 26103 stations
- South DakotaLast frost Apr 26 – Jun 1166 stations
- TennesseeLast frost Mar 16 – May 22148 stations
- TexasLast frost Jan 8 – Apr 28458 stations
- UtahLast frost Mar 9 – Jun 21169 stations
- VermontLast frost Apr 28 – Jun 143 stations
- VirginiaLast frost Mar 16 – May 12124 stations
- WashingtonLast frost Feb 26 – Jun 6154 stations
- West VirginiaLast frost Apr 7 – May 1599 stations
- WisconsinLast frost Apr 19 – Jun 3203 stations
- WyomingLast frost Apr 28 – Jun 24126 stations
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.