Coburg, OR 97408 Frost Dates
Coburg, OR: when does the frost end?
Around 04/11 is the usual last spring frost, about 226 days away. Fall's first freeze usually shows up around 10/23, roughly 196 days after the last spring frost.
Coburg sits in USDA Zone 8b (15 to 20°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 8 weeks until Coburg's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Coburg's last frost
04/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.
Coburg against the rest of the dataset
About 196 days separate Coburg's last and first frost, putting it 19,022 of 40,283 ZIP codes nationally. Within OR, it ranks 251 of 463.
Learn more
Before leaning on 97408's figures: zone vs. frost date explains why Zone 8b and Coburg's frost date answer different questions, while the frost range explains how to read the range around Coburg's dates instead of trusting one.