Sweet Home, OR 97386 Frost Dates
When can you plant in Sweet Home, OR?
The last spring frost here typically falls around 03/14, about 198 days from today. The first fall frost typically arrives around 11/18, about 248 frost-free days later.
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 Sweet Home, not a forecast for this year.
What to do before the first frost
About 12 weeks of growing season left in Sweet Home before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Sweet Home's last frost
03/14 is the middle of 30 years of NOAA records, not a promise. Plant by 02/18 and you're betting against frost in roughly 9 years out of 10. 04/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sweet Home compares
At roughly 248 frost-free days, Sweet Home places 7,686 of 40,283 ZIP codes in this dataset. Within OR, it ranks 79 of 463.
Learn more
the frost range covers how to read the range around Sweet Home's dates instead of trusting one. local microclimates covers what one yard in Sweet Home can differ from the 97386 normal.