Average Last Frost Dates for Oregon

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

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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
BrookingsFeb. 11 - Feb. 20
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
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