Lightning strikes in New Hampshire by county
The detection network has located 3,081 lightning strikes in New Hampshire since the archive began, including 2,868 in the last 7 days. The table counts every strike the network placed inside a county boundary. Another 1 strikes fell inside New Hampshire but outside every county polygon, mostly over coastal or lake water.
| # | County | Strikes | Last 7 days | Share |
|---|---|---|---|---|
| 1 | Coos County | 1,167 | 1,106 | 37.9% |
| 2 | Grafton County | 531 | 509 | 17.2% |
| 3 | Merrimack County | 417 | 417 | 13.5% |
| 4 | Strafford County | 319 | 319 | 10.4% |
| 5 | Belknap County | 276 | 276 | 9.0% |
| 6 | Carroll County | 167 | 167 | 5.4% |
| 7 | Cheshire County | 106 | 1 | 3.4% |
| 8 | Sullivan County | 69 | 69 | 2.2% |
| 9 | Rockingham County | 19 | 3 | 0.6% |
| 10 | Hillsborough County | 9 | 0 | 0.3% |
Strike positions carry the network's mean location error of about 5.6 km, so strikes near a county line can be filed one county over. Method and caveats are on the data hub; the full state table is on the United States page.
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