Hail history for Delaware County, Pennsylvania
Every NOAA hail report filed in Delaware County since 1957, with preliminary National Weather Service reports to November 3, 2026.
Readout · Delaware County
- Last hail
- May 20, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 4
- since Nov 3, 2021 · 17 reports
- Largest ever
- 1.75 in
- golf ball · Jun 24, 2010
63 reports on 37 days since 1957 · #32 of 68 Pennsylvania counties
Hail map · Delaware 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 Delaware County
The latest hail report in Delaware County is from May 20, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 4 separate hail days; the biggest stones in that time were 1.50 in on May 20, 2022.
Over the 20 years 2006–2025, Delaware County logged 45 reports on 22 hail days, about 2.3 reports a year. That is about the same as the median Pennsylvania county (2.0 a year) and ranks #32 of 68 Pennsylvania counties for all-time reports. Delaware County holds 1% of all 5,542 hail reports in Pennsylvania.
0% 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 1.75 in (golf ball) on June 24, 2010 near 0.77 E Oakmont.
Reports were up 37% in 2016–2025 (26) compared with 2006–2015 (19). The busiest year was 2022, with 10 reports on 1 day. Hail here peaks in May (37% of reports); 76% fall between April and June.
Reports a year 2006–2025 average
- Delaware County 2.3
- Median Pennsylvania county 2.0
Hail days 2006–2025
- Delaware County 22
- Median Pennsylvania county 22.5
Share 2 in or larger of sized reports
- Delaware County 0%
- Median Pennsylvania county 3%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 5 | 1 | 6 | ||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 10 | 10 | |||||||||||
| 2021 | 3 | 3 | |||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 5 | 5 | |||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 20, 2026 | 1 | 1.00 in | — |
| May 3, 2025 | 1 | 0.88 in | — |
| Apr 4, 2025 | 5 | 1.25 in | — |
| May 20, 2022 | 10 | 1.50 in | — |
Largest hail on record
| Date | Size | Location | Time · source |
|---|---|---|---|
| Jun 24, 2010 | 1.75 ingolf ball | 0.77 E Oakmont | 14:20 local · NCEI |
| Mar 29, 2009 | 1.75 ingolf ball | Boothwyn | 17:28 local · NCEI |
| Jul 10, 1992 | 1.75 ingolf ball | — | 17:40 local · NCEI |
| May 20, 2022 | 1.50 inping pong ball | Morton | 14:00 local · NCEI |
| May 22, 2014 | 1.50 inping pong ball | 0.4 ESE Glen Mills | 16:14 local · NCEI |
Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.
Size of every report
- Under 1 in 31 49%
- 1–2 in 32 51%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| May 20, 2026 | 1.00 inquarter | 0.53 E Wayne | 16:25 local · NCEI |
| May 3, 2025 | 0.88 innickel | Primos | 18:45 local · NCEI |
| Apr 4, 2025 | 1.00 inquarter | 1.27 WSW Ft Miffin | 04:00 local · NCEI |
| Apr 4, 2025 | 1.00 inquarter | 0.87 SE Rutledge | 04:00 local · NCEI |
| Apr 4, 2025 | 1.00 inquarter | Rutledge | 03:54 local · NCEI |
| Apr 4, 2025 | 1.25 inhalf dollar | 0.53 W Grace Park | 03:47 local · NCEI |
| Apr 4, 2025 | 0.75 inpenny | Rutledge | 03:42 local · NCEI |
| May 20, 2022 | 1.00 inquarter | 0.53 E Woodlyn | 14:53 local · NCEI |
| May 20, 2022 | 0.75 inpenny | 0.87 SW Briarcliff | 14:04 local · NCEI |
| May 20, 2022 | 0.88 innickel | Primos | 14:02 local · NCEI |
| May 20, 2022 | 0.88 innickel | Briarcliff | 14:01 local · NCEI |
| May 20, 2022 | 1.50 inping pong ball | Morton | 14:00 local · NCEI |
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 |
|---|---|---|---|
| Chester Heights | 6 | 3 | Jun 2, 2019 |
| Folcroft | 6 | 6 | Apr 4, 2025 |
| Boothwyn | 5 | 5 | May 22, 2014 |
| Brookhaven | 5 | 5 | Apr 4, 2025 |
| Broomall | 4 | 3 | Jun 14, 2021 |
| Village Green-Green Ridge | 4 | 3 | May 20, 2022 |
| Clifton Heights | 3 | 3 | May 3, 2025 |
| Drexel Hill | 3 | 3 | Aug 1, 2011 |
| Folsom | 3 | 2 | Apr 4, 2025 |
| Sharon Hill | 3 | 3 | Aug 1, 2011 |
| Swarthmore | 3 | 2 | Apr 4, 2025 |
| Darby | 2 | 2 | May 15, 2006 |
| Lima | 2 | 2 | Jun 2, 2019 |
| Media | 2 | 2 | Jul 27, 2014 |
| Wayne | 2 | 2 | May 20, 2026 |
| Aldan | 1 | 1 | May 20, 2022 |
| Marcus Hook | 1 | 1 | Aug 10, 2008 |
| Morton | 1 | 1 | May 20, 2022 |
| Parkside | 1 | 1 | May 22, 1988 |
| Rose Valley | 1 | 1 | May 1, 1997 |
| Woodlyn | 1 | 1 | May 20, 2022 |
| Yeadon | 1 | 1 | Apr 2, 2016 |
Questions about hail in Delaware County
How often does it hail in Delaware County, Pennsylvania?
63 hail reports have been logged in Delaware County since 1957. Over the 20 years 2006–2025 that averages 2.3 reports a year. That ranks #32 of 68 Pennsylvania counties by number of reports.
When is hail season in Delaware County?
Most reports come in May, June, April. May alone accounts for 37% of all reports.
What is the largest hail recorded in Delaware County?
1.75 in (golf ball size) on June 24, 2010 near 0.77 E Oakmont. 0% of reports here were 2 inches or larger.
When did it last hail in Delaware County?
The most recent report in this data is from May 20, 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 Delaware County had in the last five years?
4 separate days with hail reports since November 3, 2021, adding up to 17 reports. The most recent was May 20, 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.