◆ PRIMOS, PA HAIL HISTORY · DELAWARE COUNTY
Primos, PA hail history & hail map
Primos, Pennsylvania has had 5 hail events in the past 5 years, with hail up to 1.50″ (Ping Pong Ball). Most recent: May 3, 2025. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
5Hail events in the past 5 years
1.50″Largest recorded hail · Ping Pong Ball
1.50″Largest ground report (within 3 mi)
—Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Primos, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Primos
| Date | Peak hail | Sources |
|---|---|---|
| May 3, 2025 | 0.88″ Nickel | 1 ground report (max 0.88″) |
| Jun 25, 2023 | 0.25″ Small | 2 ground reports (max 0.25″) |
| Jul 29, 2022 | 0.25″ Small | 1 ground report (max 0.25″) |
| May 28, 2022 | 0.25″ Small | 1 ground report (max 0.25″) |
| May 20, 2022 | 1.50″ Ping Pong Ball | 5 ground reports (max 1.50″) |
More Pennsylvania hail history
All Pennsylvania cities & hail days →
Events count days with NOAA MRMS radar hail over Primos (39.930, -75.300) or an NWS / CoCoRaHS hail report within 3 miles. Data window: NOAA MRMS radar hail swaths Oct 2021 – Nov 2026; NWS / NCEI Storm Events reports Nov 2024 – Jul 2026; CoCoRaHS volunteer reports Oct 2021 – present. Radar hail sizes are estimates, not ground truth; hail at any single address can differ.