Spring oats Planting Dates in Idaho

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

Spring oats dates in Idaho
Activity	Window	Source	Last verified
Planting	Mar 31 to Jun 2 usual (most active Apr 14 to May 19)	source	2026-11-11
Harvest	Jul 21 to Sep 29 usual (most active Aug 11 to Sep 8)	source	2026-11-11

Spring oats calendar for Idaho
Item	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Planting			Planting window in March	Planting window, most active in April	Planting window, most active in May	Planting window in June
Harvest							Harvest window in July	Harvest window, most active in August	Harvest window, most active in September

What these dates mean in Idaho

Planting usually runs about 64 days, from Mar 31 to Jun 2.

That start date is close to the middle of the 24 places in this data set that report spring oats planting dates (Mar 31).

Harvest usually runs about 71 days, from Jul 21 to Sep 29.

From the start of the planting window to the start of the harvest window is about 112 days in Idaho, a rough guide to how long the crop occupies the bed or field.

Frost-date caveat: these are published ranges for Idaho. 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

Spring oats dates in other places

Other crops in Idaho

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.