Natural Disaster Risk in Avon

Natural Hazard Profile: Avon, South Dakota

Avon, in Bon Homme County, is a small community of about 1,094 situated in the interior eastern United States. Its semi-arid continental climate brings harsh winters, hot summers, and significant seasonal variation, and in particular severe blizzards and spring flooding. These conditions collectively define the natural hazard environment that Avon residents and property owners must navigate.

According to FEMA's National Risk Index, Avon carries an overall risk score of 4.8/10, placing it in the moderate category. Drought is the leading natural hazard, with multi-year dry periods capable of depleting water supplies, devastating agriculture, and increasing wildfire risk across the region. The area also faces notable exposure to ice storm and winter.

Within South Dakota, Avon's risk is, near the 4.9/10 state average. Nationally, it ranks near the U.S. national average of 4.5/10. FEMA's analysis of Bon Homme County identifies drought as the foremost hazard, followed by ice storm and winter. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

With a moderate risk rating, Avon residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for drought is recommended.