Frost dates change a lot from state to state, and within each state. Pick your state for the last spring frost and first fall frost in its main cities, or enter your ZIP code for the dates closest to you.
Find the frost dates for your ZIP code
Frost dates from NOAA 1991–2020 U.S. Climate Normals, nearest weather station. Zones derived from the 2023 USDA Plant Hardiness Zone Map data (PRISM Climate Group, Oregon State University). This is not the official USDA Plant Hardiness Zone Map.
Frost dates by state
- AlabamaZones 7b to 9a
- ArizonaZones 6b to 10a
- ArkansasZones 7a to 8b
- CaliforniaZones 7b to 10b
- ColoradoZones 5a to 6b
- ConnecticutZones 6a to 7a
- DelawareZones 7b to 8a
- FloridaZones 9a to 11a
- GeorgiaZones 8a to 9a
- IdahoZones 5a to 7a
- IllinoisZones 5b to 7a
- IndianaZones 5b to 7a
- IowaZones 5a to 5b
- KansasZones 6a to 7a
- KentuckyZones 6b to 7a
- LouisianaZones 8b to 9b
- MaineZones 4a to 6a
- MarylandZones 7a to 8a
- MassachusettsZones 5b to 7a
- MichiganZones 4b to 6b
- MinnesotaZones 3b to 5a
- MississippiZones 8a to 9a
- MissouriZones 6a to 7b
- MontanaZones 3b to 6a
- NebraskaZones 5a to 6a
- NevadaZones 5b to 9b
- New HampshireZones 4b to 6a
- New JerseyZones 6b to 7b
- New MexicoZones 5b to 8b
- New YorkZones 4b to 7b
- North CarolinaZones 7a to 8b
- North DakotaZones 3b to 4b
- OhioZones 6a to 6b
- OklahomaZones 7a to 8a
- OregonZones 6a to 9a
- PennsylvaniaZones 6a to 7b
- Rhode IslandZones 6b to 7a
- South CarolinaZones 8a to 9a
- South DakotaZones 4a to 5a
- TennesseeZones 7a to 8a
- TexasZones 7b to 9b
- UtahZones 5b to 7b
- VermontZones 4b to 5b
- VirginiaZones 7a to 8a
- WashingtonZones 6b to 9a
- West VirginiaZones 6a to 7a
- WisconsinZones 4a to 5b
- WyomingZones 4b to 5b
Data covers the 48 contiguous states. Dates come from NOAA U.S. Climate Normals for 1991–2020, and zones from the 2023 USDA Plant Hardiness Zone Map ZIP code data.