Brownsville, OR 97327 Frost Dates
When can you plant in Brownsville, OR?
Typically, the last spring freeze lands around 03/14, roughly 198 days out. The first fall frost typically arrives around 11/18, about 248 frost-free days later.
The USDA Plant Hardiness Zone Map puts Brownsville in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 12 weeks of growing season left in Brownsville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Brownsville'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 Brownsville compares
Brownsville's growing season runs about 248 days, ranking 7,713 of 40,283 US ZIP codes measured here, longest to shortest. Within OR, it ranks 80 of 463.
Learn more
local microclimates covers what one yard in Brownsville can differ from the 97327 normal. zone vs. frost date covers why Zone 8b and Brownsville's frost date answer different questions.