Winter wheat Planting Dates in Washington

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

Winter wheat dates in Washington
Activity	Window	Source	Last verified
Planting	Aug 30 to Oct 20 usual (most active Sep 1 to Oct 10)	source	2026-11-11
Harvest	Jul 15 to Aug 30 usual (most active Jul 25 to Aug 20)	source	2026-11-11

Winter wheat calendar for Washington
Item	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Planting								Planting window in August	Planting window, most active in September	Planting window, most active in October
Harvest							Harvest window, most active in July	Harvest window, most active in August

What these dates mean in Washington

Planting usually runs about 52 days, from Aug 30 to Oct 20.

That start date is about 18 days earlier than the middle of the 42 places in this data set that report winter wheat planting dates (Sep 17).

Harvest usually runs about 47 days, from Jul 15 to Aug 30.

From the start of the planting window to the start of the harvest window is about 319 days in Washington, a rough guide to how long the crop occupies the bed or field.

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

Winter wheat dates in other places

Other crops in Washington

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.