Maine lightning map
Maine's thunderstorms are largely summer afternoon events, often firing along cold fronts moving across northern New England.
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Detected from NOAA GOES-19 GLM satellite data. Aggregate count for Maine — your exact location and alerts live in the app.
About lightning in Maine
Maine’s thunderstorms are mostly summer afternoon events, firing along cold fronts that sweep across northern New England. Forested terrain and quick-moving fronts mean storms can arrive before you see them coming. The brief active season runs June through August. When a storm does build, tracking the nearest strike and its trend gives you a clearer warning than thunder carrying through the trees.
- Thunderstorm days/yr
- 20
- US rank
- #42 of 50
- Peak season
- June–August
State thunderstorm-day normals are provisional (NOAA/NWS); per-city climate data is shown where a station normal is published.
Cities in Maine
Lightning safety in Maine
The safest call in Maineisn’t how many storm days it averages a year — it’s how close the nearest strike is right now. Keep to the 30-30 rule: indoors within 30 seconds of thunder, back outside only 30 minutes after the last. StrikeCast shows that live distance and whether the storm is closing in, so you can move early.
StrikeCast app
Distance, trend & alerts — in your pocket.
GPS-precise distance to the nearest strike, live approaching/moving-away trend, and push alerts for every place that matters across Maine — home, work, the kids' school.
Your exact location stays on your device. Never shared. Never tracked.
Lightning guides
Frequently asked
How many thunderstorm days does Maine get?
Maine averages about 20 thunderstorm days a year, versus a US average near 25 — roughly 0.8× the national norm. Activity peaks June–August.
Where does Maine rank for lightning in the US?
By mean annual thunderstorm days, Maine ranks #42 of 50 states. Rankings use NOAA/NWS climate normals; the live distance and trend on this page come from NOAA GOES-19 satellite data.
When is thunderstorm season in Maine?
Lightning is most frequent June–August in Maine.
How does StrikeCast track lightning in Maine?
StrikeCast reads NOAA GOES-19 GLM (Geostationary Lightning Mapper) satellite data, updated continuously, to show how far away the nearest strike is and whether it is approaching or moving away. Save any place in Maine in the free app to get a push alert when lightning closes in.