Natural Disaster Risk in Nashua

Natural Hazard Profile: Nashua, New Hampshire

Nashua is a city of approximately 31,657 residents in Hillsborough County, along the northeastern Atlantic Seaboard. The area experiences long, cold winters and brief, warm summers, with heavy nor'easter snowstorms shaping the pattern of natural hazards that residents encounter. Understanding the local risk profile is essential for anyone living in, moving to, or owning property in Nashua.

FEMA rates Nashua's composite natural disaster risk at 7.7 out of 10 — high risk. Freezing rain and ice accretion are the primary winter hazard, with glaze ice events capable of downing power lines, snapping tree limbs, and making roads impassable for days. Residents should also account for hurricane and lightning risk in their preparedness planning.

Nashua's risk score, slightly above the 6.2/10 state average and well above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Hillsborough County, the highest-scoring are ice storm, hurricane, and lightning. These scores reflect county-level data and represent the baseline risk that all communities in the county share.

Nashua's high risk designation reflects meaningful exposure to natural hazards. Residents should verify that their insurance covers the area's primary risks, prepare a family emergency plan, and stay informed about seasonal hazard peaks through local weather and emergency management services.