New Hampshire

Comprehensive climate risk and disaster history profile

Billion-Dollar Events

$86.6B

Total Economic Impact

Counties

61.6

Avg Risk Score

Top Natural Hazards

Based on FEMA National Risk Index data across all 10 counties

Ice Storm

84.27 Avg Risk Score

Hurricane

80.15 Avg Risk Score

Lightning

79.91 Avg Risk Score

Landslide

75.81 Avg Risk Score

Drought

73.77 Avg Risk Score

Avalanche

69.71 Avg Risk Score

Riverine Flooding

68.57 Avg Risk Score

Cold Wave

67.02 Avg Risk Score

Historical billion-dollar events by category (1980-2024)

winter-storm 9 events

$12.6B

tropical-cyclone 2 events

$71.5B

severe-storm 1 events

$2.5B

How disaster frequency and costs have changed over time

Counties with the highest overall risk scores based on FEMA NRI

Rank	County	Risk Score	Risk Rating	SVI Percentile
1	Hillsborough	88.58	Relatively Moderate	22.3%
2	Rockingham	83.96	Relatively Moderate	2.0%
3	Merrimack	74.39	Relatively Low	21.1%
4	Grafton	66.4	Relatively Low	26.2%
5	Strafford	62.68	Relatively Low	18.3%
6	Cheshire	60.29	Relatively Low	17.0%
7	Carroll	59.34	Relatively Low	14.1%
8	Belknap	47.09	Very Low	14.5%
9	Coos	41.46	Very Low	48.6%
10	Sullivan	31.82	Very Low	21.9%