Average First Frost Dates for Oregon

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

List of Average First Frost Dates for Locations in Oregon

LocationAverage First Frost Dates
AlbanyOct. 21 - Oct. 31
AlohaNov. 11 - Nov. 20
AltamontSep.11 - Sep. 20
AshlandOct. 1 - Oct. 10
BeavertonNov. 11 - Nov. 20
BendSep.11 - Sep. 20
CanbyNov. 11 - Nov. 20
Cedar MillNov. 11 - Nov. 20
Central PointOct. 21 - Oct. 31
Coos BayDec. 1 - Dec. 10
CorvallisOct. 21 - Oct. 31
DallasOct. 21 - Oct. 31
EugeneOct. 21 - Oct. 31
Forest GroveOct. 21 - Oct. 31
Four CornersOct. 21 - Oct. 31
Grants PassOct. 11 - Oct. 20
GreshamNov. 1 - Nov. 10
Happy ValleyNov. 11 - Nov. 20
HayesvilleNov. 1 - Nov. 10
HermistonOct. 21 - Oct. 31
HillsboroNov. 1 - Nov. 10
KeizerNov. 1 - Nov. 10
Klamath FallsSep.11 - Sep. 20
Lake OswegoNov. 11 - Nov. 20
LebanonNov. 1 - Nov. 10
McMinnvilleNov. 1 - Nov. 10
MedfordOct. 21 - Oct. 31
MilwaukieNov. 11 - Nov. 20
NewbergNov. 1 - Nov. 10
Oak GroveNov. 11 - Nov. 20
Oregon CityNov. 11 - Nov. 20
PendletonOct. 11 - Oct. 20
PortlandNov. 21 - Nov. 30
RedmondAug. 21 - Aug. 31
RoseburgNov. 11 - Nov. 20
SalemOct. 21 - Oct. 31
SherwoodNov. 11 - Nov. 20
SpringfieldNov. 1 - Nov. 10
The DallesOct. 21 - Oct. 31
TigardNov. 11 - Nov. 20
TroutdaleNov. 11 - Nov. 20
TualatinNov. 11 - Nov. 20
West LinnNov. 11 - Nov. 20
White CityOct. 21 - Oct. 31
WilsonvilleNov. 11 - Nov. 20
WoodburnNov. 1 - Nov. 10

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