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Will it freeze in Franklin in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Mon, Nov 9: 32°F (Mon, Nov 9, 6:00 PM EST to Tue, Nov 10, 6:00 AM EST).
Tonight: forecast low 56°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
4 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 56°F Above 36°F · Chance Light Rain then Patchy Fog
- Fri, Nov 6 50°F Above 36°F · Light Rain Likely
- Sat, Nov 7 41°F Above 36°F · Light Rain Likely
- Sun, Nov 8 35°F Frost possible · Partly Cloudy then Slight Chance Light Rain
- Mon, Nov 9 32°F Freeze · Partly Cloudy
- Tue, Nov 10 33°F Frost possible · Partly Cloudy
- Wed, Nov 11 27°F Hard freeze · Partly Cloudy
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Franklin
The median first fall hard-freeze date (28°F) is October 13, from NOAA’s 1991–2020 Climate Normals at Franklin Falls Dam. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | May 7 · May 20 · Jun 1 | Sep 14 · Sep 27 · Oct 6 | 128 days |
| 32°F freeze | Apr 27 · May 7 · May 20 | Sep 24 · Oct 3 · Oct 15 | 148 days |
| 28°F hard freeze | Apr 15 · Apr 27 · May 7 | Oct 1 · Oct 13 · Oct 29 | 169 days |
Average high temperature by month
1991–2020 normals at Franklin Falls Dam
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Franklin, NH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Franklin Falls Dam (station USC00273182, elevation 450 ft), 1.4 mi from Franklin. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Franklin
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Laconia, NH | 12 mi | Apr 30 | Oct 18 |
| Concord, NH | 16 mi | May 8 | Oct 3 |
| Lebanon, NH | 32 mi | May 9 | Oct 6 |
| Claremont, NH | 34 mi | May 14 | Oct 1 |
| Manchester, NH | 34 mi | Apr 30 | Oct 11 |
| Rochester, NH | 37 mi | Apr 30 | Oct 9 |
| Somersworth, NH | 42 mi | Apr 30 | Oct 9 |
| Dover, NH | 43 mi | May 3 | Oct 10 |
| Sanford, ME | 46 mi | May 16 | Sep 30 |
| Keene, NH | 47 mi | May 14 | Oct 1 |
Frequently asked questions
When is the last frost in Franklin?
On average, the last spring frost (32°F) in Franklin is around May 7. In about 1 year in 10 it comes after May 20, and in 9 years in 10 it comes after April 27.
When is the first frost in Franklin?
The first fall frost (32°F) usually arrives around October 3. There’s a 10% chance of a freeze by September 24 and a 90% chance by October 15.
Can it frost in Franklin after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after May 20.
What growing zone is Franklin?
Franklin is in USDA Plant Hardiness Zone 5b (average annual extreme minimum temperature −15 to −10°F), based on the 2023 USDA map for ZIP code 03235. See growing zones in New Hampshire.
More: all New Hampshire frost dates · New Hampshire growing zones · frost vs. freeze