Hail in Philadelphia County, Pennsylvania

Hail in Philadelphia County, Pennsylvania: 45 recorded events between 1978 and 2023. The strongest on record measured 1.75. That places the county #2,327 nationally and #44 statewide for this hazard.

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

The busiest decade for hail in Philadelphia County is the 2000s, when 14 of the county's 45 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 Philadelphia County archive, hail makes up 7.0% of all recorded severe weather across 8 hazard types. Nationally the county sits at #2,327 for this hazard and #44 within Pennsylvania, putting it in the 25.3 percentile of all U.S. counties.

Jul is the peak month for hail in Philadelphia County with 12 recorded events, while Apr 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 329
• Flash Flood 142
• Flood 74

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

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

45 hail events are recorded in Philadelphia County between 1978 and 2023, causing 0 direct deaths.

What is the strongest hail recorded in Philadelphia County?

The strongest hail on record in Philadelphia County measured 1.75.

Where does the hail data for Philadelphia 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.