Hail history for Williamstown, New Jersey
NOAA hail reports in and within about 5 km (3 miles) of Williamstown since 1989, with preliminary reports to November 3, 2026.
Readout · Williamstown
- Last hail
- Sep 1, 2026
- 1.00 in, quarter size · preliminary
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 1.75 in
- golf ball · Aug 10, 2008
10 reports on 10 days since 1989 · #11 of 11 New Jersey places
Hail map · Williamstown
- 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 Williamstown
The latest hail report in and around Williamstown is from September 1, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on September 1, 2026.
Over the 20 years 2006–2025, Williamstown logged 2 reports on 2 hail days, about 0.1 reports a year. That is 33% of the median New Jersey town on this site (0.3 a year) and ranks #11 of 11 New Jersey cities and towns on this site for all-time reports. Williamstown accounts for 17% of the 58 reports filed in Gloucester County.
0% of reports with a size were 2 inches (hen egg) or larger, against 0% for the median New Jersey town on this site. The largest hail on record here is 1.75 in (golf ball) on August 10, 2008 near Williamstown.
The busiest year was 2026, with 2 reports on 2 days. Hail here peaks in April (20% of reports); 50% fall between April and June.
Reports a year 2006–2025 average
- Williamstown 0.1
- Gloucester County 1.4
- Median New Jersey town on this site 0.3
Hail days 2006–2025
- Williamstown 2
- Gloucester County 17
- Median New Jersey town on this site 5
Share 2 in or larger of sized reports
- Williamstown 0%
- Gloucester County 2%
- Median New Jersey town on this site 0%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | 2 | ||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 1, 2026 | 1 | 1.00 in | View |
| Jul 27, 2026 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Aug 10, 2008 | 1.75 ingolf ball | Williamstown | Gloucester | 14:50 local · NCEI |
| Apr 9, 1998 | 1.75 ingolf ball | Williamstown | Gloucester | 16:10 local · NCEI |
| Sep 1, 2026 | 1.00 inquarter | Williamstown | Gloucester | 00:28 UTC · NWS prelim. |
| Jul 27, 2026 | 1.00 inquarter | 0.69 N Williamstown | Gloucester | 17:51 local · NCEI |
| Aug 24, 2002 | 1.00 inquarter | Williamstown | Gloucester | 19:50 local · NCEI |
Size of every report
- Under 1 in 3 30%
- 1–2 in 7 70%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Sep 1, 2026 | 1.00 inquarter | Williamstown | Gloucester | 00:28 UTC · NWS prelim. |
| Jul 27, 2026 | 1.00 inquarter | 0.69 N Williamstown | Gloucester | 17:51 local · NCEI |
| Apr 2, 2016 | 0.75 inpenny | 1.27 ENE Williamstown | Gloucester | 23:00 local · NCEI |
| Aug 10, 2008 | 1.75 ingolf ball | Williamstown | Gloucester | 14:50 local · NCEI |
| Aug 24, 2002 | 1.00 inquarter | Williamstown | Gloucester | 19:50 local · NCEI |
| May 24, 1999 | 0.75 inpenny | Williamstown | Gloucester | 15:55 local · NCEI |
| Apr 9, 1998 | 1.75 ingolf ball | Williamstown | Gloucester | 16:10 local · NCEI |
| Mar 29, 1997 | 1.00 inquarter | Williamstown | Gloucester | 15:50 local · NCEI |
| May 30, 1991 | 1.00 inquarter | — | Gloucester | 16:25 local · NCEI |
| Jun 15, 1989 | 0.75 inpenny | — | Gloucester | 17:32 local · NCEI |
Hail history near Williamstown
- Sicklerville 7 km · 10
- Hammonton 17 km · 12
- Marlton 24 km · 11
- Moorestown-Lenola 31 km · 17
- Burlington 45 km · 11
Questions about hail in Williamstown
How often does it hail in Williamstown, New Jersey?
10 hail reports have been logged in and within about 5 km (3 miles) of Williamstown since 1989. Over the 20 years 2006–2025 that averages 0.1 reports a year. That ranks #11 of 11 New Jersey places by number of reports.
When is hail season in Williamstown?
Most reports come in April, May, August. April alone accounts for 20% of all reports.
What is the largest hail recorded in Williamstown?
1.75 in (golf ball size) on August 10, 2008 near Williamstown. 0% of reports here were 2 inches or larger.
When did it last hail in Williamstown?
The most recent report in this data is from September 1, 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 Williamstown had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was September 1, 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.