Natural Disaster Risk in Dorchester

Natural Hazard Profile: Dorchester, Wisconsin

Dorchester, in Clark County, is a small community of about 1,988 situated in the northern tier of the continental United States. Its humid continental climate brings long, cold winters with lake-effect snow and warm summers, and in particular severe blizzards and spring tornado outbreaks. These conditions collectively define the natural hazard environment that Dorchester residents and property owners must navigate.

According to FEMA's National Risk Index, Dorchester carries an overall risk score of 5.6/10, placing it in the moderate category. Arctic air outbreaks are the leading natural hazard, with temperature plunges to dangerous lows capable of causing hypothermia and widespread infrastructure failures. The area also faces notable exposure to hail and wind.

Within Wisconsin, Dorchester's risk is, near the 5.4/10 state average. Nationally, it ranks above the U.S. national average of 4.5/10. FEMA's analysis of Clark County identifies cold wave as the foremost hazard, followed by hail and wind. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

With a moderate risk rating, Dorchester 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 cold wave is recommended.