Rogue River, OR 97537 Frost Dates
Rogue River, OR: when does the frost end?
Typically, the last spring freeze lands around 05/16, roughly 261 days out. Fall's first freeze usually shows up around 10/30, roughly 164 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Rogue River 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 9 weeks until Rogue River's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/07 and only about 1 year in 10 sees frost after that.
Rogue River against the rest of the dataset
About 164 days separate Rogue River's last and first frost, putting it 30,986 of 40,283 ZIP codes nationally. Within OR, it ranks 330 of 463.
Learn more
Before leaning on 97537's figures: local microclimates explains what one yard in Rogue River can differ from the 97537 normal, while zone vs. frost date explains why Zone 8b and Rogue River's frost date answer different questions.