Iowa Corn Emergence Hits 19% for Week Ending May 10, 2026

What changed

USDA's weekly Crop Progress report shows Iowa corn at 19 percent emerged for the week ending May 10, 2026. This is a single-week reading from the agency's survey of field reporters across the state.

Why it matters

Emergence pace is one of the first checkpoints Corn Belt growers and observers track each spring. The rate at which corn pushes through the surface can reflect recent planting activity, soil temperatures, and moisture conditions. Where emergence sits relative to the five-year average and the prior year can signal whether the season is running ahead, behind, or roughly on schedule. Comparing this 19 percent figure to historical averages for the same week — when those numbers become available — could help put the current pace in context.

What to watch next

• Next week's Crop Progress report. USDA NASS typically releases updated emergence and planting numbers every Monday afternoon during the growing season. A jump in the percentage could indicate a stretch of warm, favorable weather moved things along.
• Soil temperatures and rainfall. Cool or wet conditions can slow emergence, while warm and dry windows tend to speed it up. Local weather patterns over the next week or two may matter for how quickly the rest of Iowa's corn gets out of the ground.
• State-level comparisons. Watching how Iowa's emergence stacks up against neighboring Corn Belt states can offer a broader picture of regional crop development.

Source notes

• USDA NASS Quick Stats — Iowa corn emergence, 19 percent emerged, week ending May 10, 2026. View on Quick Stats