Drought risk in Iowa

Drought risk and patterns in Iowa

Iowa's drought risk is rated level 3 of 5, meaning it faces moderate exposure to dry conditions compared with the rest of the country. The state's climate is humid continental, so precipitation usually falls year-round, but summer and fall can bring extended dry spells.

Droughts in Iowa tend to develop slowly. They are driven by a combination of below-normal rainfall, above-normal temperatures, and high evaporation. The western and southern counties are often the first to experience drought because they have lighter soils and less average precipitation than the northeast. However, no part of the state is immune.

According to the Drought.gov and the US Drought Monitor, Iowa has experienced significant droughts in recent decades, including widespread events in 1988 and 2012. These episodes remind homeowners that dry conditions can affect both agriculture and rural communities. The National Risk Index, maintained by FEMA, places Iowa at a moderate risk level, reflecting the state's historical pattern of drought. Iowa Homeland Security and Emergency Management coordinates drought response and provides updates on its website.

How drought affects homes

Drought rarely causes dramatic structural failure, but it can create costly problems for homeowners. The most common damage comes when dry soil shrinks and shifts. Clay-rich soils, common in parts of Iowa, can pull away from foundations, leading to cracks in basement walls or slabs.

For homes that rely on private wells, drought can lower the water table and cause the pump to run dry. Even in towns with municipal water, voluntary or mandatory restrictions can limit watering of lawns and gardens, harming plants and landscaping. Low water levels can also increase mineral concentrations in well water, which may affect taste and shorten the lifespan of water-using appliances.

Dry vegetation also increases the risk of grass and brush fires near homes. In rural areas, a small fire can spread quickly and threaten outbuildings and vehicles.

Insurance considerations are important. A standard homeowners policy does not cover damage from drought-related ground movement, such as foundation settlement or cracked walls. It also does not cover the cost of replacing a dried-up well or losing landscape plants. Homeowners should review their policy and ask their agent about endorsements that may provide coverage for specific risks like well replacement.

How to prepare your home

Taking steps before a drought hits can reduce damage and stress. Preparation is especially important for rural homeowners with private wells. Use the following list as a guide:

• Watch local drought conditions using the US Drought Monitor and follow guidance from your county emergency manager.
• Fix leaky faucets, toilets, and pipes promptly. A small drip can waste hundreds of gallons over a season.
• Install water-efficient fixtures and appliances. Look for the EPA WaterSense label when replacing showerheads, toilets, or irrigation controllers.
• Direct downspouts and gutters away from your foundation to keep soil stable. Consider a soaker hose or rain barrel to capture water.
• Inspect your well annually. Have a licensed contractor test the pump and water level so you know how much capacity is available.
• Mulch gardens and flower beds to reduce evaporation and preserve soil moisture.
• Consider a smart irrigation controller that adjusts watering based on rainfall and soil moisture to avoid waste.
• Maintain a defensible space around your home by clearing dead plants, leaves, and tall grass, especially if you live in a rural area.
• Store a three-day supply of drinking water for each person and pet, in case municipal supplies are stressed.

Frequently asked questions

How can I tell if my area is in a drought?

The easiest way is to check the US Drought Monitor, which updates every Thursday and shows dry conditions across the country. You can also check with your county Extension office or local water utility for restrictions.

Will my homeowners insurance cover drought damage?

Generally, no. Standard policies exclude earth movement and water damage from below-ground sources, so cracks from soil shrinkage or a failed well are not covered. Talk to your insurance agent to understand your policy and explore optional endorsements.

What should I do first if a drought is declared?

First, follow any water restrictions from your city or county. Then reduce your water use inside and outside, fix leaks, and monitor your well if you have one. The Iowa Homeland Security and Emergency Management website also updates with local alerts for drought conditions.

Official resources

• Iowa Homeland Security and Emergency Management
• US Drought Monitor
• Drought.gov
• EPA WaterSense