Natural Disaster Risk in Chatham

Natural Hazard Profile: Chatham, Illinois

Chatham, in Sangamon County, is a city of approximately 15,413 residents situated in the interior eastern United States. Its humid continental climate brings bitterly cold winters and hot, humid summers, and in particular a severe thunderstorm and tornado season each spring. These conditions collectively define the natural hazard environment that Chatham residents and property owners must navigate.

According to FEMA's National Risk Index, Chatham carries an overall risk score of 7.6/10, placing it in the high 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 heat and tornado.

Within Illinois, Chatham's risk is, considerably above the 5.8/10 state average. Nationally, it ranks well above the U.S. national average of 4.5/10. FEMA's analysis of Sangamon County identifies cold wave as the foremost hazard, followed by heat and tornado. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

With a high natural disaster risk rating, Chatham residents benefit from taking preparedness seriously. Reviewing insurance coverage for cold wave and secondary hazards, registering for emergency alerts, and maintaining a household emergency kit are practical steps that can significantly reduce impact during a major event.