Cave Junction, OR 97534 Frost Dates
Cave Junction, OR: when does the frost end?
Around 01/31 is the usual last spring frost, about 156 days away. Fall's first freeze usually shows up around 12/27, roughly 334 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Cave Junction in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 17 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
01/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/14 and only about 1 year in 10 sees frost after that.
Cave Junction against the rest of the dataset
At roughly 334 frost-free days, Cave Junction places 2,802 of 40,283 ZIP codes in this dataset. Within OR, it ranks 3 of 463.
Learn more
Before leaning on 97534'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.