Frost Advisories in New Hampshire
217 frost advisories since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of frost advisories reaches back to 2005.
Frost Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Frost Advisories
- 217
- Busiest year
- 201318 frost advisories
- Average year
- 10over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
The latest frost advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 2:16 PM EDT | Frost Advisory | GYX | Carroll, Grafton | 17 hr |
| Sep 22, 2:15 PM EDT | Frost Advisory | GYX | Carroll, Grafton | 17 hr |
| Sep 14, 2:07 AM EDT | Frost Advisory | GYX | Coos | 30 hr |
| May 30, 2:10 PM EDT | Frost Advisory | GYX | Carroll, Coos, Grafton | 17 hr |
| May 22, 1:02 PM EDT | Frost Advisory | GYX | Coos | 17 hr |
| May 21, 2:27 AM EDT | Frost Advisory | GYX | Carroll, Cheshire, Grafton, Sullivan | 28 hr |
| May 12, 2:05 PM EDT | Frost Advisory | GYX | Belknap, Carroll, Grafton, Strafford | 18 hr |
| May 11, 2:23 PM EDT | Frost Advisory | GYX | Belknap, Carroll, Cheshire, Hillsborough, Merrimack, Strafford | 18 hr |
| May 10, 2:07 PM EDT | Frost Advisory | GYX | Carroll, Grafton | 18 hr |
| May 8, 2:25 PM EDT | Frost Advisory | GYX | Rockingham, Strafford | 16 hr |
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.