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Will it freeze in Berlin in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sun, Nov 8: 30°F (Sun, Nov 8, 6:00 PM EST to Mon, Nov 9, 6:00 AM EST).
Tonight: forecast low 50°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
5 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 50°F Above 36°F · Chance Light Rain
- Fri, Nov 6 45°F Above 36°F · Chance Light Rain
- Sat, Nov 7 35°F Frost possible · Light Rain Likely
- Sun, Nov 8 30°F Freeze · Chance Light Rain
- Mon, Nov 9 27°F Hard freeze · Slight Chance Light Snow
- Tue, Nov 10 29°F Freeze · Chance Rain And Snow
- Wed, Nov 11 22°F Hard freeze · Slight Chance Rain And Snow then Mostly 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 Berlin
The median first fall hard-freeze date (28°F) is October 2, from NOAA’s 1991–2020 Climate Normals at York Pond. 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 21 · Jun 4 · Jun 20 | Aug 29 · Sep 11 · Sep 24 | 97 days |
| 32°F freeze | May 8 · May 23 · Jun 6 | Sep 9 · Sep 22 · Oct 3 | 122 days |
| 28°F hard freeze | Apr 27 · May 8 · May 23 | Sep 19 · Oct 2 · Oct 19 | 146 days |
Average high temperature by month
1991–2020 normals at York Pond
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 Berlin, NH come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: York Pond (station USC00279966, elevation 1,519 ft), 3.2 mi from Berlin. 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 Berlin
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Auburn, ME | 58 mi | Apr 25 | Oct 19 |
| Lewiston, ME | 61 mi | Apr 25 | Oct 19 |
| Laconia, NH | 63 mi | Apr 30 | Oct 18 |
| Barre, VT | 64 mi | May 16 | Sep 29 |
| Montpelier, VT | 66 mi | May 5 | Oct 9 |
| Westbrook, ME | 71 mi | Apr 26 | Oct 15 |
| Franklin, NH | 74 mi | May 7 | Oct 3 |
| Gardiner, ME | 76 mi | May 1 | Oct 11 |
| Lebanon, NH | 76 mi | May 9 | Oct 6 |
| Portland, ME | 76 mi | Apr 26 | Oct 15 |
Frequently asked questions
When is the last frost in Berlin?
On average, the last spring frost (32°F) in Berlin is around May 23. In about 1 year in 10 it comes after June 6, and in 9 years in 10 it comes after May 8.
When is the first frost in Berlin?
The first fall frost (32°F) usually arrives around September 22. There’s a 10% chance of a freeze by September 9 and a 90% chance by October 3.
Can it frost in Berlin 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 June 4.
What growing zone is Berlin?
Berlin is in USDA Plant Hardiness Zone 4b (average annual extreme minimum temperature −25 to −20°F), based on the 2023 USDA map for ZIP code 03570. See growing zones in New Hampshire.
More: all New Hampshire frost dates · New Hampshire growing zones · frost vs. freeze