Natural Disaster Risk in Cortland

Natural Hazard Profile: Cortland, Illinois

Cortland, in DeKalb County, is a town of roughly 4,621 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 Cortland residents and property owners must navigate.

Cortland's overall natural disaster risk is rated 5.9/10 (Moderate) by FEMA's National Risk Index. Cold wave events are the primary hazard risk, driven by periodic invasions of Arctic air that drive wind chills to life-threatening levels and stress heating systems. Secondary hazards include tornado and wind.

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

With a moderate risk rating, Cortland 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.