Hail in Armstrong County, Pennsylvania

Hail in Armstrong County, Pennsylvania: 72 recorded events between 1983 and 2025. The strongest on record measured 1.75. That places the county #1,837 nationally and #29 statewide for this hazard.

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

The busiest decade for hail in Armstrong County is the 2010s, when 30 of the county's 72 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 Armstrong County archive, hail makes up 14.1% of all recorded severe weather across 8 hazard types. Nationally the county sits at #1,837 for this hazard and #29 within Pennsylvania, putting it in the 40.6 percentile of all U.S. counties.

May is the peak month for hail in Armstrong County with 20 recorded events, while Oct 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 348
• Flash Flood 51

How many hail events are on record in Armstrong County, Pennsylvania?

72 hail events are recorded in Armstrong County between 1983 and 2025, causing 0 direct deaths.

What is the strongest hail recorded in Armstrong County?

The strongest hail on record in Armstrong County measured 1.75.

Where does the hail data for Armstrong 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.