Lightning Map — New Hampshire

Track real-time lightning strikes and thunderstorm activity across New Hampshire. With an average of 22 thunderstorm days per year, New Hampshire is a state with notable seasonal storm activity.

22
Avg Storm Days/Year
2
Cities Tracked
1.4M
Population

Data sourced from NOAA GOES-19 Geostationary Lightning Mapper (GLM) and the Storm Prediction Center (SPC).

About Lightning in New Hampshire

New Hampshire averages 22 thunderstorm days per year, placing it slightly below the national average of 25 days. Located at approximately 43°N latitude, New Hampshire is a mountainous New England state where the White Mountains can trigger localized orographic thunderstorms, while valleys and lowlands see broader frontal-driven storms.

In New Hampshire, maritime air masses interact with continental weather patterns during warm months. Peak thunderstorm activity occurs during June through August, when conditions align for the most frequent lightning strikes. With a population of 1.4 million residents, storm awareness and lightning safety are important considerations for anyone living in or visiting New Hampshire.

#43
out of 50 states
22
storm days/year
3 fewer than the US average

When Thunderstorms Peak in New Hampshire

Thunderstorm season in New Hampshire runs from June through August. Storms are typically driven by frontal systems and can develop rapidly during warm, humid afternoons. While the season is more compressed than in southern states, individual storms can be intense with frequent cloud-to-ground lightning.

Peak Season
June through August

Top Cities in New Hampshire

Monitor lightning activity in these New Hampshire cities

Manchester

NH
22 storm days/yr

Nashua

NH
23 storm days/yr

Lightning Safety in New Hampshire

Stay safe during the 22 thunderstorm days New Hampshire averages each year

Follow the 30-30 Rule

If the time between seeing lightning and hearing thunder is 30 seconds or less, seek shelter. Stay indoors for 30 minutes after the last thunderclap.

Stay Indoors During Storms

With 22 thunderstorm days annually in New Hampshire, it's still worth being prepared when storms do occur. Avoid windows and stay away from plumbing.

Monitor Lightning Activity

Use Lightning Tracker to get real-time alerts when storms approach your area in New Hampshire. Early awareness helps you make safer decisions.

Outdoor Safety

If caught outside, avoid open fields, hilltops, and isolated trees. Seek shelter in a substantial building or hard-topped vehicle.

Useful Guides for New Hampshire

These pages help visitors who search for maps, nearby strikes, and alert setup

Near me How to check lightning near you in New Hampshire

Use this guide when you want to know how fast nearby strikes can become a real safety problem in New Hampshire.

 Map guide How to read a lightning map for New Hampshire

Understand clusters, timing, and storm movement before using launch alerts in the app.

 Alerts Best ways to get lightning alerts in New Hampshire

Compare app alerts, NOAA weather radio, and local warning workflows for storms in your area.
App links later

Track Lightning in New Hampshire Right Now

The app links can be added after release. For now, use the New Hampshire hub, city pages, and lightning guides to cover map and safety intent.

Launching Soon iOS & Android

App links go live at release. For now use the lightning maps and guides on this site.