Pennsylvania hail map — April 4, 2025
NOAA radar detected hail of an inch or more over 11 Pennsylvania cities on April 4, 2025. The largest stones — 1.00″, quarter size — fell over Philadelphia.
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- The April 4, 2025 swath — and every other storm since 2023 across Pennsylvania
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- Cities hit
- 11
- in Pennsylvania
- Largest stone
- 1.00″
- quarter size
- Impact rating
- 3/10
- from stone size
Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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Pennsylvania cities hit on April 4, 2025
What people on the ground measured in Pennsylvania on April 4, 2025
6 reports filed with the National Weather Service — 1 from trained observers or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.25″ half dollar size PublicBrookhaven, PA4:47 AM EDTDelaware County
Also estimated 65 mph wind gusts.
- 1.00″ quarter size PublicSwarthmore, PA4:54 AM EDTDelaware County
Quarter sized hail.
- 1.00″ quarter size ASOSPhiladelphia Internatio, PA5:00 AM EDTPhiladelphia County
Airport observer reported 1 inch hail at PHL. The period of the Hail event was 11 minutes.
- 1.00″ quarter size Public1 W Folsom, PA5:00 AM EDTDelaware County
Report from mPING: Quarter (1.00 in.).
- 0.75″ penny size Trained SpotterSwarthmore, PA4:42 AM EDTDelaware County
- 0.25″ penny size Public2 N Blake, PA5:00 AM EDTChester County
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Other Pennsylvania hail days
Shopping for a hail app to work Pennsylvania?
This page is one storm. If you are deciding which tool to work Pennsylvania with all season, these compare the ones roofers actually buy — with every price taken from the vendor's own site and linked.
- Best hail tracking apps, comparedHailMate, HailTrace, Hail Recon, HailStrike and RadarScope — every published price sourced and linked, and who each one is genuinely right for.
- HailMate vs HailTraceStreet-level NOAA swaths on a map your crew can knock, with the CRM already inside — instead of quote-only meteorologist maps billed on top of one.
- Hail map apps for roofers (and the Hail Recon alternative)Every storm on one map instead of loading dates one at a time — plus the canvassing and the whole claim, monthly, for what one state costs them a year.
- Best canvassing apps, comparedHailMate, SalesRabbit, SPOTIO, Knockio, RoofLink and Badger Maps — every published price sourced and linked, and two of them publish none.
Pennsylvania hail on April 4, 2025
NOAA radar put hail of an inch or more over 11 Pennsylvania cities that day. The largest stones — 1.00 inches, quarter size — were over Philadelphia. Every city hit is listed above with its own stone size.