Natural Disaster Risk in Denison

Natural Hazard Profile: Denison, Texas

Denison, in Grayson County, is a city of approximately 24,835 residents situated in the interior eastern United States. Its diverse climate brings an exceptionally varied climate from humid subtropical in the east to desert in the west, and in particular overlapping tornado, hurricane, flood, and drought seasons. These conditions collectively define the natural hazard environment that Denison residents and property owners must navigate.

Denison's overall natural disaster risk is rated 7.0/10 (High) by FEMA's National Risk Index. Hailstorm risk tops the local hazard profile, driven by frequent severe thunderstorm development that produces some of the most property-damaging hail in the country. Secondary hazards include heat and tornado.

Within Texas, Denison's risk is, slightly above the 5.6/10 state average. Nationally, it ranks well above the U.S. national average of 4.5/10. FEMA's analysis of Grayson County identifies hail 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, Denison residents benefit from taking preparedness seriously. Reviewing insurance coverage for hail 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.