Cave Junction, OR 97523 Frost Dates
Cave Junction, OR: when does the frost end?
The last spring frost here typically falls around 05/04, about 249 days from today. Fall's first freeze usually shows up around 10/13, roughly 160 days after the last spring frost.
Zone 8b (15 to 20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Cave Junction, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Cave Junction's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Cave Junction's last frost
05/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/23 and only about 1 year in 10 sees frost after that.
Cave Junction against the rest of the dataset
At roughly 160 frost-free days, Cave Junction places 32,387 of 40,283 ZIP codes in this dataset. Within OR, it ranks 338 of 463.
Learn more
Before leaning on 97523's figures: zone vs. frost date explains why Zone 8b and Cave Junction's frost date answer different questions, while the frost range explains how to read the range around Cave Junction's dates instead of trusting one.