Maine hail history
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Maine had hail reported on 69 days from 2016 to 2025, about 7 a year, and on 368 days since 1955. The largest hailstone on record in the state is 4.00″ (June 1, 1986). Aroostook County had the most hail days of any county from 2016 to 2025 (21).
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Report counts rose over the decades as more people and spotters reported storms, so compare recent years with each other rather than with the 1960s.
Maine cities with the most hail days, 2016–2025
| City | Hail days 2016–25 | 1″+ hail days | Largest hail | Last hail |
|---|---|---|---|---|
| Presque Isle | 4 | 3 | 1.00″ | Jun 17, 2022 |
| Caribou | 2 | 1 | 3.00″ | Jun 19, 2021 |
| Westbrook | 1 | 1 | 1.75″ | Aug 24, 2020 |
| Brewer | 1 | 0 | 1.25″ | Jul 2, 2020 |
| Sanford | 1 | 1 | 1.50″ | Jul 14, 2020 |
| Waterville | 1 | 1 | 1.75″ | Aug 13, 2023 |
| Bangor | 1 | 0 | 1.00″ | Jul 2, 2020 |
| Lewiston | 1 | 1 | 1.75″ | Mar 17, 2016 |
| Saco | 1 | 1 | 1.75″ | Jul 14, 2020 |
| Auburn | 1 | 1 | 1.75″ | Mar 17, 2016 |
| Biddeford | 1 | 1 | 1.25″ | Jul 14, 2020 |
| Ellsworth | 1 | 1 | 1.00″ | Aug 15, 2018 |
| Rockland | 1 | 1 | 1.00″ | Sep 24, 2019 |
| Hallowell | 0 | 0 | 1.75″ | Aug 1, 2015 |
| Augusta | 0 | 0 | 1.75″ | Jun 18, 2011 |
| South Portland | 0 | 0 | 1.75″ | Aug 13, 2026 |
| Portland | 0 | 0 | 1.75″ | Aug 4, 2015 |
| Calais | 0 | 0 | 2.75″ | May 16, 2013 |
| Bath | 0 | 0 | 1.00″ | Aug 2, 2011 |
| Gardiner | 0 | 0 | 1.00″ | Aug 2, 2011 |
Biggest hail days in Maine since 2016
| Day | Largest hail | Reports |
|---|---|---|
| July 24, 2022 | 2.50″ | 4 |
| August 13, 2023 | 2.00″ | 12 |
| March 17, 2016 | 1.75″ | 14 |
| July 18, 2016 | 1.75″ | 10 |
| July 2, 2019 | 1.75″ | 8 |
| June 5, 2024 | 1.75″ | 6 |
| July 9, 2020 | 1.75″ | 5 |
| May 22, 2022 | 1.75″ | 5 |
| July 21, 2019 | 1.75″ | 3 |
| July 21, 2022 | 1.75″ | 3 |
| August 29, 2018 | 1.75″ | 1 |
| June 30, 2021 | 1.75″ | 1 |
The largest hail and the biggest storm days since 1955, with radar swaths since 2019: Biggest hail storms in Maine history
Maine counties
| County | Hail days 2016–25 | All-time hail reports | Largest hail | Last hail |
|---|---|---|---|---|
| Aroostook County | 21 | 210 | 3.00″ | Jul 14, 2025 |
| Penobscot County | 16 | 111 | 3.00″ | Jul 9, 2024 |
| Oxford County | 13 | 108 | 2.50″ | Jul 10, 2025 |
| Piscataquis County | 8 | 70 | 2.00″ | Aug 13, 2023 |
| Cumberland County | 7 | 149 | 4.00″ | Aug 13, 2026 |
| Kennebec County | 7 | 98 | 2.50″ | Jun 28, 2026 |
| Androscoggin County | 7 | 55 | 1.75″ | Aug 14, 2024 |
| Franklin County | 6 | 57 | 2.75″ | May 23, 2024 |
| Hancock County | 6 | 23 | 1.75″ | Aug 5, 2023 |
| Somerset County | 5 | 63 | 2.50″ | Aug 13, 2023 |
| York County | 4 | 149 | 2.75″ | Aug 22, 2020 |
| Washington County | 4 | 42 | 2.75″ | Oct 9, 2024 |
| Waldo County | 4 | 20 | 2.00″ | May 22, 2022 |
| Lincoln County | 3 | 22 | 1.50″ | Aug 24, 2020 |
| Knox County | 2 | 11 | 1.25″ | Sep 24, 2019 |
| Sagadahoc County | 0 | 22 | 1.50″ | Aug 31, 2012 |
Places with fewer than 5 hail days on record are listed without a link and kept out of search engines.
When hail falls in Maine, by month and week: Maine hail season
Download every Maine hail, tornado and wind report as CSV, by year: Maine storm report downloads
All Maine cities
Auburn Augusta Bangor Brewer Calais Caribou Hallowell Lewiston Portland Presque Isle Saco Sanford South Portland Waterville Westbrook
Guides: How to check if it hailed at your address · Hail size chart and roof damage