160
Recorded events
0
Direct deaths
0
Direct injuries
$38K
Property damage
Hail in Mercer County, Pennsylvania: 160 recorded events between 1956 and 2026. The strongest on record measured 2.75. That places the county #860 nationally and #8 statewide for this hazard.
Decade by decade
Hail in Mercer County, Pennsylvania: events per decade
Reporting practice changed over time — early decades are undercounted, not calmer.
The busiest decade for hail in Mercer County is the 2010s, when 76 of the county's 160 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 Mercer County archive, hail makes up 19.8% of all recorded severe weather across 7 hazard types. Nationally the county sits at #860 for this hazard and #8 within Pennsylvania, putting it in the 72.3 percentile of all U.S. counties.
Seasonality
Events by month
May is the peak month for hail in Mercer County with 56 recorded events, while Feb 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.
Most recent
Latest recorded events
| Date | Location | Magnitude | Damage |
|---|---|---|---|
| Apr 15, 2026 | SANDY LAKE | 1 | $0 |
| Apr 15, 2026 | NEW VERNON | 1 | $0 |
| Apr 15, 2026 | CLARKS MILLS | 1.25 | $0 |
| Apr 15, 2026 | FAIRVIEW | 1.5 | $0 |
| Apr 15, 2026 | HADLEY | 1 | $0 |
| Apr 15, 2026 | HENLEIN | 1 | $0 |
| Apr 15, 2026 | MAYSVILLE | 1.25 | $0 |
| Apr 15, 2026 | ORANGEVILLE | 1.75 | $0 |
| Apr 15, 2026 | MAYSVILLE | 1.5 | $0 |
| May 2, 2025 | JAMESTOWN | 1.25 | $0 |
Other hazards here
More from Mercer County
- Thunderstorm Wind 519
- Flash Flood 82
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
Two lines of severe thunderstorms formed ahead of an approaching cold front during the early afternoon and continuing through the late evening hours of June 2nd. These storms produced a total of nine confirmed tornadoes (ranging from F0 to F2) as they swept across southwest Pennsylvania, extreme northern West Virginia and the western panhandle of Maryland. One F1 tornado struck the Mount Washington section of Pittsburgh, producing around $13 million in damage but only minor injuries. This was the first recorded tornado to pass through the Pittsburgh city limits. Although these storms produced millions of dollars of damage as they moved across the region, no deaths occurred and only 51 injuries were reported (mostly in the highly populated Mount Washington area of Pittsburgh).
Quick answers
Frequently asked
How many hail events are on record in Mercer County, Pennsylvania?
160 hail events are recorded in Mercer County between 1956 and 2026, causing 0 direct deaths.
What is the strongest hail recorded in Mercer County?
The strongest hail on record in Mercer County measured 2.75.
Where does the hail data for Mercer 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.
Cite this page
“Hail in Mercer County, Pennsylvania.” Severe Weather History. severeweatherhistory.com/county/pennsylvania/mercer-county/hail/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.