Idaho hail history

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Idaho had hail reported on 88 days from 2016 to 2025, about 9 a year, and on 517 days since 1955. The largest hailstone on record in the state is 3.00″ (July 14, 1975). Bonneville County had the most hail days of any county from 2016 to 2025 (13).

Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology

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.

Idaho cities with the most hail days, 2016–2025

Biggest hail days in Idaho since 2016

The largest hail and the biggest storm days since 1955, with radar swaths since 2019: Biggest hail storms in Idaho history

Idaho counties

Places with fewer than 5 hail days on record are listed without a link and kept out of search engines.

When hail falls in Idaho, by month and week: Idaho hail season

Download every Idaho hail, tornado and wind report as CSV, by year: Idaho storm report downloads

All Idaho cities

Ammon Blackfoot Boise City Burley Caldwell Chubbuck Emmett Fruitland Garden City Gooding Grangeville Heyburn Idaho Falls Iona Kimberly Lewiston Meridian Moscow Mountain Home Nampa Orofino Payette Pocatello Preston Rexburg Rigby Rupert Salmon Sandpoint Shelley Soda Springs St. Anthony Twin Falls

Guides: How to check if it hailed at your address · Hail size chart and roof damage