National Weather ServiceNew JerseyFlood WatchArchive to October 1, 2026
Flood Watches in New Jersey
The National Weather Service issued 14 flood watches for New Jersey in 2025 and 11 a year on average in 2008-2025; in 2021-2025 it had the 35th most of any state. 2026 through September: 19, 121% above the average of 9 for those months in 2008-2025. Somerset was covered most often (110 times since 2008).
How many flood watches does New Jersey get?
Every flood watch that covered part of New Jersey. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 19 |
| 2025 | 14 |
| 2024 | 21 |
| 2023 | 24 |
| 2022 | 9 |
| 2021 | 4 |
| 2020 | 6 |
| 2019 | 4 |
| 2018 | 15 |
| 2017 | 7 |
| 2016 | 1 |
| 2015 | 2 |
| 2014 | 9 |
| 2013 | 6 |
| 2012 | 6 |
| 2011 | 26 |
| 2010 | 11 |
| 2009 | 6 |
| 2008 | 18 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does New Jersey get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in New Jersey?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Somerset | 110 | 42 | September 13, 2026 |
| Mercer | 110 | 42 | September 13, 2026 |
| Middlesex | 108 | 42 | September 13, 2026 |
| Hunterdon | 105 | 40 | September 13, 2026 |
| Morris | 104 | 37 | September 13, 2026 |
| Northwestern Burlington | 94 | 40 | September 13, 2026 |
| Warren | 92 | 33 | August 27, 2026 |
| Camden | 91 | 38 | September 13, 2026 |
| Gloucester | 89 | 38 | September 13, 2026 |
| Eastern Passaic | 87 | 35 | September 13, 2026 |
| Western Monmouth | 84 | 36 | September 13, 2026 |
| Western Passaic | 82 | 35 | September 13, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a flood watch?
A flood watch means conditions may lead to flooding in the coming day or days; it is not yet happening. A watch means the conditions for the hazard are possible or favourable, but it is not yet happening: be ready to act if a warning follows. The national record · Every warning type in New Jersey.