◆ ALTOONA PETERSON ARP, PA HAIL HISTORY · BLAIR COUNTY
Altoona Peterson Arp, PA hail history & hail map
Altoona Peterson Arp, Pennsylvania has had 2 hail events in the past 5 years, with hail up to 1.00″ (Quarter). Most recent: Mar 16, 2025. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
2Hail events in the past 5 years
1.00″Largest recorded hail · Quarter
1.00″Largest ground report (within 3 mi)
—Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Altoona Peterson Arp, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Altoona Peterson Arp
| Date | Peak hail | Sources |
|---|---|---|
| Mar 16, 2025 | 0.75″ Penny | 2 ground reports (max 0.75″) |
| Jul 21, 2023 | 1.00″ Quarter | 1 ground report (max 1.00″) |
More Pennsylvania hail history
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Events count days with NOAA MRMS radar hail over Altoona Peterson Arp (40.630, -78.300) 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.