Iowa Corn and Soybean Crops Outpace National Averages

Iowa's corn and soybean crops are showing strong condition ratings heading into the critical July 4 growing milestone, outpacing national averages despite pockets of severe weather and western drought. New USDA data confirms that favorable heat units and well-timed rainfall have set the stage for a promising harvest season in the Hawkeye State, offering a bright spot for the state's agricultural economy.

How do Iowa crops compare to the rest of the country?

The weekly USDA Crop Condition Report released on June 22 confirms that Iowa farmers are heading into the heart of the growing season with a distinct advantage. The report listed 77 percent of Iowa's corn crop as 'good to excellent,' well above the national average of 68 percent. Only 6 percent of the U.S. corn crop was rated 'poor' or 'very poor.'

Soybeans tell a similar story. Iowa soybeans registered a 74 percent 'good to excellent' rating, compared to the national average of 66 percent. These strong numbers reflect the resilience of Iowa producers and the favorable growing conditions across much of the region.

What is the status of the western Iowa drought?

While much of the Midwest is thriving, dry conditions are intensifying in the western Corn Belt. The June 25 U.S. Drought Monitor showed that approximately 70 percent of the U.S. was experiencing some level of drought. A growing area of severe drought has emerged in primary crop production areas, specifically spanning northeast Nebraska, northwest Iowa, southeast South Dakota, and southwest Minnesota.

However, some of these dry regions caught a break recently. Needed rainfall on June 28 provided some relief to portions of this drought-stricken zone. Meanwhile, the balance of the Corn Belt has only a few abnormally dry areas, keeping overall growing conditions highly favorable.

Are crops reaching the traditional July 4 milestones?

For generations, farmers measured their success by the old saying 'knee-high by the 4th of July.' In modern agriculture, that benchmark is outdated. Thanks to advanced hybrids and improved farming practices, 'waist-high' or taller corn by July 4 is the new standard for a successful crop.

This year, most corn in Southern Minnesota and Northern Iowa planted by early May will likely be waist-high to shoulder-high by the holiday. Some April-planted corn in areas with favorable conditions is already approaching the tasseling and pollination stage, a rare sight by July 4 in states like Iowa and Minnesota.

Accumulated growing degree units (GDUs) support this rapid development. As of June 24, the University of Minnesota Southern Research and Outreach Center at Waseca recorded 824 GDUs since May 1. That total is nearly 10 percent above normal for the year, driven by a period of very warm temperatures in late May and early June.

Rainfall brings relief but also localized storm damage

The 2026 growing season has brought a mixed bag of precipitation. While 'rain makes grain,' excessive rainfall has caused crop loss in some areas of the Midwest. Portions of the eastern Corn Belt and the Upper Midwest have been battered by severe storms, resulting in drown-out areas in fields, hail damage, and strong winds that damaged grain bins and farm buildings.

Fortunately, the heavy rainfall events in 2026 have been far more localized than the devastating floods that hit Southern Minnesota and Northern Iowa in previous years. Data from the Waseca research center shows 4.95 inches of rain as of June 24, plus another 0.85 inches on June 28. This brings the June total to just above the 5.32-inch average, a stark contrast to the 7.72 inches received in June 2025 and the 12.45 inches received in June 2024.

At the Lamberton research center in Southwest Minnesota, June rainfall totaled 3.60 inches, with 1.26 inches falling on June 28 alone. Since May 1, Lamberton has received 5.23 inches of precipitation, which is about 2.3 inches below normal. These moderate rainfall amounts have generally been much better for crop development than the waterlogged fields of the past two years.

Important FSA deadline approaching for Iowa farmers

Amid the focus on crop conditions, farmers have a crucial administrative deadline approaching. July 15 is the deadline to report 2026 planted crop acreage to local USDA Farm Service Agency (FSA) offices, including any prevented planted acres.

Accurate acreage reporting has become extremely important. Supplemental farm program payments and disaster payments are often based on these reported figures. In addition, the current crop base acreage update for PLC and ARC-CO farm program choices in future years relies on reported crop acreage from 2019 to 2023. Farmers with questions about the reporting process should contact their local FSA office to ensure they remain eligible for these critical safety net programs.

What percentage of Iowa corn is in good to excellent condition?

According to the June 22 USDA Crop Condition Report, 77 percent of Iowa's corn crop is rated as 'good to excellent,' significantly outpacing the national average of 68 percent.

What is the deadline to report crop acreage to the USDA?

July 15 is the deadline for farmers to report their 2026 planted crop acreage and any prevented planted acres to their local USDA Farm Service Agency office.

How does the 2026 growing season compare to recent years?

The 2026 season features earlier planting and faster crop development than normal, with moderate rainfall that has largely avoided the massive flooding seen in 2024 and 2025. However, localized storm damage and expanding drought in the western Corn Belt remain concerns.