Hail history for Clarion County, Pennsylvania
Every NOAA hail report filed in Clarion County since 1983, with preliminary National Weather Service reports to November 3, 2026.
Readout · Clarion County
- Last hail
- May 13, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 6
- since Nov 3, 2021 · 15 reports
- Largest ever
- 2.50 in
- tennis ball · Aug 3, 2015
69 reports on 39 days since 1983 · #31 of 68 Pennsylvania counties
Hail map · Clarion County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Clarion County
The latest hail report in Clarion County is from May 13, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 6 separate hail days; the biggest stones in that time were 1.50 in on March 22, 2026.
Over the 20 years 2006–2025, Clarion County logged 49 reports on 24 hail days, about 2.5 reports a year. That is 20% more than the median Pennsylvania county (2.0 a year) and ranks #31 of 68 Pennsylvania counties for all-time reports. Clarion County holds 1% of all 5,542 hail reports in Pennsylvania.
3% of reports with a size were 2 inches (hen egg) or larger, against 3% for the median Pennsylvania county. The largest hail on record here is 2.50 in (tennis ball) on August 3, 2015 near 0.52 E Callensburg.
Reports were down 19% in 2016–2025 (22) compared with 2006–2015 (27). The busiest year was 2024, with 9 reports on 2 days. Hail here peaks in April (30% of reports); 72% fall between April and June.
Reports a year 2006–2025 average
- Clarion County 2.5
- Median Pennsylvania county 2.0
Hail days 2006–2025
- Clarion County 24
- Median Pennsylvania county 22.5
Share 2 in or larger of sized reports
- Clarion County 3%
- Median Pennsylvania county 3%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3 | 1 | 4 | ||||||||||
| 2025 | 1 | 1 | 2 | ||||||||||
| 2024 | 9 | 9 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 2 | 3 | 5 | ||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 3 | 2 | 5 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 13, 2026 | 1 | 1.00 in | — |
| Mar 22, 2026 | 3 | 1.50 in | — |
| Jun 9, 2025 | 1 | 1.50 in | — |
| Mar 16, 2025 | 1 | 0.75 in | — |
| Apr 17, 2024 | 4 | 1.00 in | — |
| Apr 14, 2024 | 5 | 1.25 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Aug 3, 2015 | 2.50 intennis ball | 0.52 E Callensburg | — | 20:40 local · NCEI |
| Apr 20, 2017 | 2.00 inhen egg | 0.69 S Crates | $10K | 14:30 local · NCEI |
| May 15, 2018 | 1.75 ingolf ball | Shannondale | — | 11:36 local · NCEI |
| Apr 20, 2017 | 1.75 ingolf ball | Limestone | — | 14:25 local · NCEI |
| Aug 3, 2015 | 1.75 ingolf ball | 0.86 SE Clarion | — | 21:02 local · NCEI |
Size of every report
- Under 1 in 27 39%
- 1–2 in 40 58%
- 2 in + 2 3%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| May 13, 2026 | 1.00 inquarter | 0.88 SE Clarion | 13:30 local · NCEI |
| Mar 22, 2026 | 1.00 inquarter | 0.33 NW New Bethlehem | 18:38 local · NCEI |
| Mar 22, 2026 | 1.50 inping pong ball | 0.82 NNE Williamsburg | 16:02 local · NCEI |
| Mar 22, 2026 | 1.00 inquarter | 0.87 SW Clarion Parker Arpt | 16:02 local · NCEI |
| Jun 9, 2025 | 1.50 inping pong ball | 0.52 W Cultsville | 16:10 local · NCEI |
| Mar 16, 2025 | 0.75 inpenny | 1.04 E Fairmount City | 12:27 local · NCEI |
| Apr 17, 2024 | 1.00 inquarter | 2.07 N Mill Creek | 17:34 local · NCEI |
| Apr 17, 2024 | 1.00 inquarter | 2.6 NE Middle Run | 17:30 local · NCEI |
| Apr 17, 2024 | 1.00 inquarter | 1.04 E Clarion Parker Arpt | 17:29 local · NCEI |
| Apr 17, 2024 | 1.00 inquarter | 0.52 E Cottage Hill | 17:24 local · NCEI |
| Apr 14, 2024 | 1.00 inquarter | 0.87 SE Fairmount City | 19:53 local · NCEI |
| Apr 14, 2024 | 1.25 inhalf dollar | 2.32 SSE Reidsburg | 18:54 local · NCEI |
Cities and towns in Clarion County
| Place | Reports | Largest |
|---|---|---|
| Clarion | 14 | 1.75 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| New Bethlehem | 5 | 5 | Mar 22, 2026 |
| Parker | 5 | 4 | Apr 17, 2024 |
| Knox | 4 | 4 | May 28, 2019 |
| Sligo | 4 | 4 | Jun 9, 2025 |
| Hawthorn | 3 | 3 | Mar 16, 2025 |
| Leeper | 3 | 3 | Aug 19, 2001 |
| Shippenville | 3 | 1 | Apr 25, 2010 |
| Callensburg | 2 | 2 | Aug 3, 2015 |
| Crown | 2 | 2 | Jan 8, 2019 |
| Rimersburg | 2 | 2 | Apr 14, 2024 |
| Marianne | 1 | 1 | May 28, 2017 |
| St. Petersburg | 1 | 1 | Jun 3, 2012 |
| Strattanville | 1 | 1 | Jun 29, 2012 |
| Summerville | 1 | 1 | May 15, 2018 |
| Tylersburg | 1 | 1 | Apr 3, 2006 |
Questions about hail in Clarion County
How often does it hail in Clarion County, Pennsylvania?
69 hail reports have been logged in Clarion County since 1983. Over the 20 years 2006–2025 that averages 2.5 reports a year. That ranks #31 of 68 Pennsylvania counties by number of reports.
When is hail season in Clarion County?
Most reports come in April, May, June. April alone accounts for 30% of all reports.
What is the largest hail recorded in Clarion County?
2.50 in (tennis ball size) on August 3, 2015 near 0.52 E Callensburg. 3% of reports here were 2 inches or larger.
When did it last hail in Clarion County?
The most recent report in this data is from May 13, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Clarion County had in the last five years?
6 separate days with hail reports since November 3, 2021, adding up to 15 reports. The most recent was May 13, 2026.
Where does this hail data come from?
Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.