National Weather ServiceNew HampshireFreeze WarningArchive to October 1, 2026
Freeze Warnings in New Hampshire
The National Weather Service issued 5 freeze warnings for New Hampshire in 2025 and 4 a year on average in 2008-2025; in 2021-2025 it had the 45th most of any state. 2026 through September: 3, 69% above the average of 2 for those months in 2008-2025. Northern Carroll was covered most often (32 times since 2008).
How many freeze warnings does New Hampshire get?
Every freeze warning that covered part of New Hampshire. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 3 |
| 2025 | 5 |
| 2024 | 0 |
| 2023 | 1 |
| 2022 | 4 |
| 2021 | 1 |
| 2020 | 7 |
| 2019 | 4 |
| 2018 | 4 |
| 2017 | 3 |
| 2016 | 3 |
| 2015 | 5 |
| 2014 | 5 |
| 2013 | 4 |
| 2012 | 3 |
| 2011 | 6 |
| 2010 | 4 |
| 2009 | 9 |
| 2008 | 3 |
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 Hampshire 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 Hampshire?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Northern Carroll | 32 | 4 | May 13, 2026 |
| Northern Grafton | 31 | 6 | May 22, 2026 |
| Southern Coos | 26 | 4 | May 22, 2026 |
| Northern Coos | 26 | 4 | May 22, 2026 |
| Southern Grafton | 21 | 4 | May 12, 2026 |
| Cheshire | 18 | 2 | October 10, 2025 |
| Southern Carroll | 17 | 2 | October 10, 2025 |
| Sullivan | 16 | 3 | May 12, 2026 |
| Western And Central Hillsborough | 14 | 2 | October 10, 2025 |
| Belknap | 14 | 2 | October 10, 2025 |
| Strafford | 13 | 2 | October 10, 2025 |
| Merrimack | 13 | 2 | October 10, 2025 |
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 freeze warning?
A freeze warning means temperatures at or below 32°F are expected during the growing season, enough to kill crops and sensitive plants. Since 2024-2025 it also covers the colder nights that had a hard freeze warning of their own. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. AreaZine's counts include the hard freeze warnings issued before the change. The national record · Every warning type in New Hampshire.