Hail history for Hamilton Square, New Jersey
NOAA hail reports in and within about 5 km (3 miles) of Hamilton Square since 1987, with preliminary reports to November 3, 2026.
Readout · Hamilton Square
- Last hail
- Feb 21, 2023
- 0.75 in, penny size
- Hail days, last 5 years
- 1
- since Nov 3, 2021 · 1 report
- Largest ever
- 1.75 in
- golf ball · Jun 13, 1987
13 reports on 9 days since 1987 · #2 of 11 New Jersey places
Hail map · Hamilton Square
- 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 Hamilton Square
The latest hail report in and around Hamilton Square is from February 21, 2023, 0.75 in (penny size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 0.75 in on February 21, 2023.
Over the 20 years 2006–2025, Hamilton Square logged 11 reports on 7 hail days, about 0.6 reports a year. That is 83% more than the median New Jersey town on this site (0.3 a year) and ranks #2 of 11 New Jersey cities and towns on this site for all-time reports. Hamilton Square accounts for 20% of the 64 reports filed in Mercer 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 June 13, 1987.
Reports were up 75% in 2016–2025 (7) compared with 2006–2015 (4). The busiest year was 2020, with 5 reports on 1 day. Hail here peaks in July (54% of reports); 23% fall between April and June.
Reports a year 2006–2025 average
- Hamilton Square 0.6
- Mercer County 1.9
- Median New Jersey town on this site 0.3
Hail days 2006–2025
- Hamilton Square 7
- Mercer County 19
- Median New Jersey town on this site 5
Share 2 in or larger of sized reports
- Hamilton Square 0%
- Mercer County 0%
- 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 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 5 | 5 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Feb 21, 2023 | 1 | 0.75 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 13, 1987 | 1.75 ingolf ball | — | Mercer | 18:40 local · NCEI |
| Jul 6, 2020 | 1.50 inping pong ball | 1.26 ENE White Horse | Mercer | 13:10 local · NCEI |
| Jul 6, 2020 | 1.25 inhalf dollar | 1.48 SSE Mercerville | Mercer | 13:10 local · NCEI |
| Jul 6, 2020 | 1.00 inquarter | 0.87 SE Hamilton Square | Mercer | 13:10 local · NCEI |
| Jul 6, 2020 | 1.00 inquarter | 1.26 ENE White Horse | Mercer | 13:00 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 5 38%
- 1–2 in 8 62%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Feb 21, 2023 | 0.75 inpenny | Hamilton Square | Mercer | 15:40 local · NCEI |
| Jul 6, 2020 | 1.25 inhalf dollar | 1.48 SSE Mercerville | Mercer | 13:10 local · NCEI |
| Jul 6, 2020 | 1.50 inping pong ball | 1.26 ENE White Horse | Mercer | 13:10 local · NCEI |
| Jul 6, 2020 | 1.00 inquarter | 0.87 SE Hamilton Square | Mercer | 13:10 local · NCEI |
| Jul 6, 2020 | 1.00 inquarter | 1.26 ENE White Horse | Mercer | 13:00 local · NCEI |
| Jul 6, 2020 | 1.00 inquarter | Hamilton Square | Mercer | 13:00 local · NCEI |
| Apr 26, 2016 | 0.75 inpenny | 0.69 S Robbinsville | Mercer | 17:45 local · NCEI |
| May 31, 2010 | 1.00 inquarter | Hamilton Square | Mercer | 17:28 local · NCEI |
| Oct 3, 2009 | 0.88 innickel | Hamilton Square | Mercer | 17:20 local · NCEI |
| Jul 26, 2009 | 0.75 inpenny | 0.17 ESE Hamilton Square | Mercer | 19:25 local · NCEI |
| Mar 29, 2009 | 1.00 inquarter | Hamilton Square | Mercer | 18:25 local · NCEI |
| Jul 3, 1996 | 0.75 inpenny | Dutch Neck | Mercer | 17:54 local · NCEI |
Hail history near Hamilton Square
- Burlington 24 km · 11
- Moorestown-Lenola 39 km · 17
- Marlton 43 km · 11
- White House Station 45 km · 11
- Toms River 47 km · 13
Questions about hail in Hamilton Square
How often does it hail in Hamilton Square, New Jersey?
13 hail reports have been logged in and within about 5 km (3 miles) of Hamilton Square since 1987. Over the 20 years 2006–2025 that averages 0.6 reports a year. That ranks #2 of 11 New Jersey places by number of reports.
When is hail season in Hamilton Square?
Most reports come in July, February, March. July alone accounts for 54% of all reports.
What is the largest hail recorded in Hamilton Square?
1.75 in (golf ball size) on June 13, 1987. 0% of reports here were 2 inches or larger.
When did it last hail in Hamilton Square?
The most recent report in this data is from February 21, 2023 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Hamilton Square had in the last five years?
1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was February 21, 2023.
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.