Hail in Fergus County, Montana

Hail in Fergus County, Montana: 251 recorded events between 1956 and 2025. The strongest on record measured 4.5. That places the county #430 nationally and #9 statewide for this hazard.

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for hail in Fergus County is the 2000s, when 103 of the county's 251 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.

Within the Fergus County archive, hail makes up 48.7% of all recorded severe weather across 7 hazard types. Nationally the county sits at #430 for this hazard and #9 within Montana, putting it in the 86.2 percentile of all U.S. counties.

Jun is the peak month for hail in Fergus County with 107 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.

• Thunderstorm Wind 193

Written by National Weather Service staff at the time of the event · public domain

How many hail events are on record in Fergus County, Montana?

251 hail events are recorded in Fergus County between 1956 and 2025, causing 0 direct deaths.

What is the strongest hail recorded in Fergus County?

The strongest hail on record in Fergus County measured 4.5.

Where does the hail data for Fergus County come from?

All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.