Nashua, NH
Local storm history & FEMA National Risk Index data
Nashua is rated Relatively Moderate for overall natural hazard risk — near the middle compared to other US counties — based on FEMA's National Risk Index for Hillsborough County, NH. The county's highest-rated hazards are ice storm, lightning, and inland flooding.
Storm events near Nashua
NOAA-recorded tornado, hail, and flood events within 25 miles of Nashua's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Nashua itself, not the whole county.
County-wide hazard risk
Every other hazard FEMA and NOAA track — including drought — is only scored at the county level. These are Hillsborough County's FEMA National Risk Index scores, covering Nashua along with the rest of the county, not a Nashua-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 67 | Relatively Low |
| Inland Flooding | 92.6 | Relatively Moderate |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 88.2 | Relatively Low |
| Heat Wave | 75.4 | Relatively Low |
| Tornado | 82.6 | Relatively Moderate |
| Avalanche | 15.2 | Very Low |
| Cold Wave | 66.2 | Relatively Moderate |
| Drought | 57.9 | Relatively Low |
| Hail | 55.4 | Relatively Low |
| Hurricane | 92.6 | Relatively Moderate |
| Ice Storm | 95.4 | Very High |
| Landslide | 84.2 | Relatively Low |
| Lightning | 93.2 | Relatively High |
| Strong Wind | 86.9 | Relatively High |
| Tsunami | — | Not Applicable |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 87.4 | Relatively High |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Hillsborough County risk profile for disaster declarations, social vulnerability, and climate projection data.
Other cities in Hillsborough County:
More on Hillsborough County:
Frequently asked questions
What natural hazards is Nashua, NH at risk of?
Nashua is rated Relatively Moderate for overall natural hazard risk by FEMA's National Risk Index — near the middle compared to other US counties. The highest-rated hazards for Hillsborough County, where Nashua is located, are ice storm, lightning, and inland flooding.
What is Nashua's biggest natural hazard risk?
Ice Storm is the highest-rated hazard for Hillsborough County, where Nashua is located, scoring 95.4 out of 100 on FEMA's National Risk Index (rated "Very High").
Is Nashua a high-risk area for natural disasters?
Somewhat — Nashua carries near the middle compared to other US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Moderate" for Hillsborough County.
Has Nashua had tornadoes, hail, or flooding?
NOAA has recorded 5 tornado, 73 hail, 143 inland flooding events within 25 miles of Nashua since 2016.