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Soybeans planting and harvest datesSoybeans Planting Dates in South Dakota
Usual soybeans planting and harvest periods in South Dakota, 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 | May 8 to Jun 21 usual (most active May 15 to Jun 11) | source | 2026-11-11 |
| Harvest | Sep 22 to Nov 3 usual (most active Sep 28 to Oct 24) | source | 2026-11-11 |
| Item | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Planting | Planting window, most active in May | Planting window, most active in June | ||||||||||
| Harvest | Harvest window, most active in September | Harvest window, most active in October | Harvest window in November |
What these dates mean in South Dakota
Planting usually runs about 45 days, from May 8 to Jun 21.
That start date is about 4 days later than the middle of the 31 places in this data set that report soybeans planting dates (May 4).
Harvest usually runs about 43 days, from Sep 22 to Nov 3.
From the start of the planting window to the start of the harvest window is about 137 days in South Dakota, a rough guide to how long the crop occupies the bed or field.
Related guides
- Soybean Planting Calendar by Maturity Group
- Soybean Growth Stages and Calendar Timing
- Double-Cropping Calendar: Wheat and Soybeans
Soybeans dates in other places
- Alabama
- Arkansas
- Delaware
- Florida
- Georgia
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maryland
- Michigan
- Minnesota
- Mississippi
- Missouri
- Nebraska
- New Jersey
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Pennsylvania
- South Carolina
- Tennessee
- Texas
- Virginia
- West Virginia
- Wisconsin
Other crops in South Dakota
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.