National Weather ServiceNew JerseyHeat AdvisoryArchive to October 1, 2026
Heat Advisories in New Jersey
The National Weather Service issued 13 heat advisories for New Jersey in 2025 and 10 a year on average in 2008-2025; in 2021-2025 it had the 36th most of any state. 2026 through September: 14, 37% above the average of 10 for those months in 2008-2025. Hudson was covered most often (89 times since 2008).
How many heat advisories does New Jersey get?
Every heat advisory that covered part of New Jersey. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 14 |
| 2025 | 13 |
| 2024 | 17 |
| 2023 | 5 |
| 2022 | 10 |
| 2021 | 16 |
| 2020 | 13 |
| 2019 | 8 |
| 2018 | 15 |
| 2017 | 9 |
| 2016 | 13 |
| 2015 | 6 |
| 2014 | 2 |
| 2013 | 10 |
| 2012 | 15 |
| 2011 | 10 |
| 2010 | 13 |
| 2009 | 1 |
| 2008 | 8 |
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 |
|---|---|---|---|
| Hudson | 89 | 18 | August 9, 2026 |
| Eastern Passaic | 82 | 18 | August 9, 2026 |
| Southeastern Burlington | 81 | 23 | September 3, 2026 |
| Ocean | 80 | 22 | September 3, 2026 |
| Western Monmouth | 79 | 23 | September 3, 2026 |
| Eastern Essex | 78 | 18 | August 9, 2026 |
| Eastern Union | 78 | 18 | August 9, 2026 |
| Middlesex | 77 | 21 | August 6, 2026 |
| Eastern Bergen | 76 | 18 | August 9, 2026 |
| Somerset | 74 | 20 | August 6, 2026 |
| Western Union | 74 | 18 | August 9, 2026 |
| Camden | 73 | 26 | September 3, 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 heat advisory?
A heat advisory means heat that can make people ill, especially those without cooling, below the office's extreme heat warning values. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in New Jersey.