Fall oats Planting Dates in Oregon

Usual fall oats planting and harvest periods in Oregon, shown as ranges with their source. Use them to frame a plan, then adjust for your own frost dates and soil temperature.

Fall oats dates in Oregon
Activity	Window	Source	Last verified
Planting	Sep 15 to Dec 10 usual (most active Oct 15 to Nov 15)	source	2026-11-11
Harvest	Jul 10 to Sep 1 usual (most active Aug 10 to Aug 20)	source	2026-11-11

Fall oats calendar for Oregon
Item	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Planting									Planting window in September	Planting window, most active in October	Planting window, most active in November	Planting window in December
Harvest							Harvest window in July	Harvest window, most active in August	Harvest window in September

What these dates mean in Oregon

Planting usually runs about 87 days, from Sep 15 to Dec 10.

That start date is close to the middle of the 9 places in this data set that report fall oats planting dates (Sep 15).

Harvest usually runs about 54 days, from Jul 10 to Sep 1.

From the start of the planting window to the start of the harvest window is about 298 days in Oregon, a rough guide to how long the crop occupies the bed or field.

Frost-date caveat: these are published ranges for Oregon. A northern or high-elevation site will run later than a southern or low one, and a cold wet spring can push planting past the window. Frost dates and local conditions vary; NASS state-level usual dates from 20-year progress data (Oct 2010 edition), begin ~5% and end ~95% complete. Check your last spring frost and soil temperature, and confirm with your county extension office.

Related guides

Oats Planting Calendar

Fall oats dates in other places

Other crops in Oregon

Last reviewed: November 2026. Source: USDA NASS, Field Crops Usual Planting and Harvesting Dates (October 2010 edition, copy hosted by Cornell University Mann Library). Dates are the usual start and end of the period when about 5% to 95% of the crop is planted or harvested, from long-run state progress data. They are historic averages, not a forecast.