Average Last Frost Dates for Oregon

Click on the map for more information. Click on the icon in the lower right to view the map legend. Add additional data layers using the icon in the upper right corner.

Last Frost Dates were calculated using daily climate data from the period between 1991-2020.

List of Average Last Frost Dates for Locations in Oregon

LocationAverage Last Frost Dates
AlbanyMay 1 - May 10
AlohaApr. 1 - Apr. 10
AltamontJun. 21 - Jun. 30
AshlandMay 21 - May 31
BeavertonApr. 1 - Apr. 10
BendJun. 21 - Jun. 30
CanbyApr. 1 - Apr. 10
Cedar MillApr. 1 - Apr. 10
Central PointMay 1 - May 10
Coos BayMar. 11 - Mar. 20
CorvallisMay 1 - May 10
DallasMay 1 - May 10
EugeneMay 1 - May 10
Forest GroveMay 1 - May 10
Four CornersMay 1 - May 10
Grants PassMay 1 - May 10
GreshamApr. 11 - Apr. 20
Happy ValleyApr. 11 - Apr. 20
HayesvilleMay 1 - May 10
HermistonApr. 21 - Apr. 30
HillsboroApr. 21 - Apr. 30
KeizerMay 1 - May 10
Klamath FallsJun. 21 - Jun. 30
Lake OswegoMar. 21 - Mar. 31
LebanonApr. 21 - Apr. 30
McMinnvilleApr. 21 - Apr. 30
MedfordMay 1 - May 10
MilwaukieMar. 21 - Mar. 31
NewbergApr. 11 - Apr. 20
Oak GroveMar. 21 - Mar. 31
Oregon CityApr. 1 - Apr. 10
PendletonMay 1 - May 10
PortlandMar. 11 - Mar. 20
RedmondJun. 21 - Jun. 30
RoseburgApr. 1 - Apr. 10
SalemMay 1 - May 10
SherwoodApr. 1 - Apr. 10
SpringfieldApr. 21 - Apr. 30
The DallesMay 1 - May 10
TigardMar. 21 - Mar. 31
TroutdaleApr. 11 - Apr. 20
TualatinApr. 1 - Apr. 10
West LinnMar. 21 - Mar. 31
White CityMay 1 - May 10
WilsonvilleApr. 1 - Apr. 10
WoodburnApr. 11 - Apr. 20

Maps for Neighboring Areas

Related Maps and Pages

2023 plantmaps.com