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Crop dates by placeSpring oats Planting Dates by State and Region
Published spring oats planting windows for 24 places, with the source and the caveats you need before you use them.
Across the 24 places in this data set, the planting window begins as early as Feb 15 (Oklahoma) and as late as May 5 (Alaska). The middle of the range starts around Mar 31.
| Place | Planting | Harvest |
|---|---|---|
| Alaska | Planting: May 5 to Jun 5 | Sep 1 to Oct 10 |
| California | Planting: Feb 20 to May 30 | Aug 15 to Oct 1 |
| Colorado | Planting: Mar 17 to May 23 | Jul 13 to Sep 25 |
| Idaho | Planting: Mar 31 to Jun 2 | Jul 21 to Sep 29 |
| Illinois | Planting: Mar 20 to May 12 | Jul 4 to Aug 13 |
| Indiana | Planting: Apr 1 to May 10 | Jul 10 to Aug 10 |
| Iowa | Planting: Mar 25 to May 13 | Jul 9 to Aug 11 |
| Kansas | Planting: Feb 20 to May 1 | Jul 10 to Aug 10 |
| Maine | Planting: May 5 to Jun 7 | Aug 11 to Oct 4 |
| Michigan | Planting: Apr 10 to May 22 | Jul 19 to Sep 2 |
| Minnesota | Planting: Apr 11 to May 26 | Jul 21 to Sep 4 |
| Missouri | Planting: Mar 1 to Apr 30 | Jun 20 to Aug 1 |
| Montana | Planting: Apr 18 to Jun 5 | Aug 8 to Sep 22 |
| Nebraska | Planting: Mar 26 to May 3 | Jul 4 to Aug 7 |
| New York | Planting: Mar 25 to May 29 | Jul 30 to Sep 9 |
| North Dakota | Planting: Apr 19 to Jun 3 | Jul 28 to Sep 18 |
| Ohio | Planting: Apr 4 to May 13 | Jul 13 to Aug 11 |
| Oklahoma | Planting: Feb 15 to Mar 26 | Jun 4 to Jul 13 |
| Pennsylvania | Planting: Apr 15 to May 25 | Jul 20 to Aug 30 |
| South Dakota | Planting: Apr 3 to May 23 | Jul 14 to Aug 23 |
| Utah | Planting: Mar 20 to Jun 1 | Jul 25 to Sep 30 |
| Washington | Planting: Mar 5 to Apr 20 | Jul 15 to Sep 10 |
| Wisconsin | Planting: Apr 11 to May 18 | Jul 22 to Aug 30 |
| Wyoming | Planting: Apr 3 to Jun 9 | Jul 18 to Sep 15 |
Calendar view
| Item | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alaska planting | Planting window, most active in May | Planting window in June | ||||||||||
| Alaska harvest | Harvest window, most active in September | Harvest window in October | ||||||||||
| California planting | Planting window in February | Planting window, most active in March | Planting window, most active in April | Planting window, most active in May | ||||||||
| California harvest | Harvest window in August | Harvest window, most active in September | Harvest window in October | |||||||||
| Colorado planting | Planting window, most active in March | Planting window, most active in April | Planting window, most active in May | |||||||||
| Colorado harvest | Harvest window, most active in July | Harvest window, most active in August | Harvest window, most active in September | |||||||||
| Idaho planting | Planting window in March | Planting window, most active in April | Planting window, most active in May | Planting window in June | ||||||||
| Idaho harvest | Harvest window in July | Harvest window, most active in August | Harvest window, most active in September | |||||||||
| Illinois planting | Planting window, most active in March | Planting window, most active in April | Planting window in May | |||||||||
| Illinois harvest | Harvest window, most active in July | Harvest window, most active in August | ||||||||||
| Indiana planting | Planting window, most active in April | Planting window in May | ||||||||||
| Indiana harvest | Harvest window, most active in July | Harvest window, most active in August | ||||||||||
| Iowa planting | Planting window in March | Planting window, most active in April | Planting window, most active in May | |||||||||
| Iowa harvest | Harvest window, most active in July | Harvest window, most active in August | ||||||||||
| Kansas planting | Planting window in February | Planting window, most active in March | Planting window, most active in April | Planting window in May | ||||||||
| Kansas harvest | Harvest window, most active in July | Harvest window, most active in August | ||||||||||
| Maine planting | Planting window, most active in May | Planting window in June | ||||||||||
| Maine harvest | Harvest window, most active in August | Harvest window, most active in September | Harvest window in October | |||||||||
| Michigan planting | Planting window, most active in April | Planting window, most active in May | ||||||||||
| Michigan harvest | Harvest window, most active in July | Harvest window, most active in August | Harvest window in September | |||||||||
| Minnesota planting | Planting window, most active in April | Planting window, most active in May | ||||||||||
| Minnesota harvest | Harvest window, most active in July | Harvest window, most active in August | Harvest window in September | |||||||||
| Missouri planting | Planting window, most active in March | Planting window, most active in April | ||||||||||
| Missouri harvest | Harvest window in June | Harvest window, most active in July | Harvest window in August | |||||||||
| Montana planting | Planting window, most active in April | Planting window, most active in May | Planting window in June | |||||||||
| Montana harvest | Harvest window, most active in August | Harvest window, most active in September | ||||||||||
| Nebraska planting | Planting window in March | Planting window, most active in April | Planting window in May | |||||||||
| Nebraska harvest | Harvest window, most active in July | Harvest window in August | ||||||||||
| New York planting | Planting window in March | Planting window, most active in April | Planting window in May | |||||||||
| New York harvest | Harvest window in July | Harvest window, most active in August | Harvest window in September | |||||||||
| North Dakota planting | Planting window, most active in April | Planting window, most active in May | Planting window in June | |||||||||
| North Dakota harvest | Harvest window in July | Harvest window, most active in August | Harvest window, most active in September | |||||||||
| Ohio planting | Planting window, most active in April | Planting window, most active in May | ||||||||||
| Ohio harvest | Harvest window, most active in July | Harvest window, most active in August | ||||||||||
| Oklahoma planting | Planting window, most active in February | Planting window, most active in March | ||||||||||
| Oklahoma harvest | Harvest window, most active in June | Harvest window, most active in July | ||||||||||
| Pennsylvania planting | Planting window, most active in April | Planting window, most active in May | ||||||||||
| Pennsylvania harvest | Harvest window, most active in July | Harvest window, most active in August | ||||||||||
| South Dakota planting | Planting window, most active in April | Planting window, most active in May | ||||||||||
| South Dakota harvest | Harvest window, most active in July | Harvest window, most active in August | ||||||||||
| Utah planting | Planting window in March | Planting window, most active in April | Planting window, most active in May | Planting window in June | ||||||||
| Utah harvest | Harvest window in July | Harvest window, most active in August | Harvest window, most active in September | |||||||||
| Washington planting | Planting window, most active in March | Planting window, most active in April | ||||||||||
| Washington harvest | Harvest window in July | Harvest window, most active in August | Harvest window in September | |||||||||
| Wisconsin planting | Planting window, most active in April | Planting window, most active in May | ||||||||||
| Wisconsin harvest | Harvest window, most active in July | Harvest window, most active in August | ||||||||||
| Wyoming planting | Planting window, most active in April | Planting window, most active in May | Planting window in June | |||||||||
| Wyoming harvest | Harvest window, most active in July | Harvest window, most active in August | Harvest window, most active in September |
Frost-date caveat: ranges blur real differences inside a state or region. Use them to plan, then fit them to your last frost date, soil temperature and field conditions.
Related guides
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.