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Spring oats planting and harvest datesSpring oats Planting Dates in Montana
Usual spring oats planting and harvest periods in Montana, shown as ranges with their source. Use them to frame a plan, then adjust for your own frost dates and soil temperature.
| Activity | Window | Source | Last verified |
|---|---|---|---|
| Planting | Apr 18 to Jun 5 usual (most active Apr 26 to May 28) | source | 2026-11-11 |
| Harvest | Aug 8 to Sep 22 usual (most active Aug 15 to Sep 9) | source | 2026-11-11 |
| Item | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Planting | Planting window, most active in April | Planting window, most active in May | Planting window in June | |||||||||
| Harvest | Harvest window, most active in August | Harvest window, most active in September |
What these dates mean in Montana
Planting usually runs about 49 days, from Apr 18 to Jun 5.
That start date is about 18 days later than the middle of the 24 places in this data set that report spring oats planting dates (Mar 31).
Harvest usually runs about 46 days, from Aug 8 to Sep 22.
From the start of the planting window to the start of the harvest window is about 112 days in Montana, a rough guide to how long the crop occupies the bed or field.
Related guides
Spring oats dates in other places
- Alaska
- California
- Colorado
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Maine
- Michigan
- Minnesota
- Missouri
- Nebraska
- New York
- North Dakota
- Ohio
- Oklahoma
- Pennsylvania
- South Dakota
- Utah
- Washington
- Wisconsin
- Wyoming
Other crops in Montana
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.