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Winter wheat planting and harvest datesWinter wheat Planting Dates in Illinois
Usual winter wheat planting and harvest periods in Illinois, 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 | Sep 28 to Nov 9 usual (most active Oct 5 to Oct 29) | source | 2026-11-11 |
| Harvest | Jun 15 to Jul 19 usual (most active Jun 19 to Jul 11) | source | 2026-11-11 |
| Item | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Planting | Planting window in September | Planting window, most active in October | Planting window in November | |||||||||
| Harvest | Harvest window, most active in June | Harvest window, most active in July |
What these dates mean in Illinois
Planting usually runs about 43 days, from Sep 28 to Nov 9.
That start date is about 11 days later than the middle of the 42 places in this data set that report winter wheat planting dates (Sep 17).
Harvest usually runs about 35 days, from Jun 15 to Jul 19.
From the start of the planting window to the start of the harvest window is about 260 days in Illinois, a rough guide to how long the crop occupies the bed or field.
Related guides
- Wheat Planting Calendar: Winter vs. Spring
- Buckwheat Planting Calendar
- Wheat Growth Stages and Calendar Timing
- Double-Cropping Calendar: Wheat and Soybeans
Winter wheat dates in other places
- Alabama
- Arizona
- Arkansas
- California
- Colorado
- Delaware
- Florida
- Georgia
- Idaho
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maryland
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Other crops in Illinois
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.