Roseburg, OR 97443 Frost Dates
97443, near Roseburg, OR: the frost window
The last spring frost here typically falls around 04/27, about 242 days from today. Fall's first freeze usually shows up around 10/19, roughly 176 days after the last spring frost.
Roseburg 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
Roseburg's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Roseburg's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Roseburg against the rest of the dataset
About 176 days separate Roseburg's last and first frost, putting it 26,385 of 40,283 ZIP codes nationally. Within OR, it ranks 306 of 463.
Learn more
Two guides worth reading on 97443: zone vs. frost date, on why Zone 8b and Roseburg's frost date answer different questions, and the frost range, on how to read the range around Roseburg's dates instead of trusting one.