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Will it freeze in Biddeford in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Wed, Nov 11: 31°F (Wed, Nov 11, 6:00 PM EST to Thu, Nov 12, 6:00 AM EST).
Tonight: forecast low 57°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 57°F Above 36°F · Mostly Cloudy then Chance Light Rain
- Fri, Nov 6 49°F Above 36°F · Light Rain
- Sat, Nov 7 39°F Above 36°F · Light Rain
- Sun, Nov 8 38°F Above 36°F · Partly Cloudy
- Mon, Nov 9 36°F Frost possible · Mostly Clear
- Tue, Nov 10 38°F Above 36°F · Mostly Clear
- Wed, Nov 11 31°F 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 Biddeford
The median first fall hard-freeze date (28°F) is October 15, from NOAA’s 1991–2020 Climate Normals at Kennebunkport. 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 2 | Sep 9 · Sep 24 · Oct 6 | 126 days |
| 32°F freeze | Apr 28 · May 9 · May 22 | Sep 20 · Oct 3 · Oct 19 | 146 days |
| 28°F hard freeze | Apr 16 · Apr 29 · May 12 | Sep 30 · Oct 15 · Nov 1 | 169 days |
Average high temperature by month
1991–2020 normals at Kennebunkport
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 Biddeford, ME come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Kennebunkport (station USC00174193, elevation 20 ft), 6.6 mi from Biddeford. 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 Biddeford
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Saco, ME | 6.2 mi | Apr 26 | Oct 15 |
| South Portland, ME | 14 mi | Apr 26 | Oct 15 |
| Portland, ME | 17 mi | Apr 26 | Oct 15 |
| Sanford, ME | 19 mi | May 16 | Sep 30 |
| Westbrook, ME | 19 mi | Apr 26 | Oct 15 |
| Somersworth, NH | 28 mi | Apr 30 | Oct 9 |
| Dover, NH | 30 mi | May 3 | Oct 10 |
| Rochester, NH | 31 mi | Apr 30 | Oct 9 |
| Portsmouth, NH | 32 mi | May 4 | Oct 8 |
| Bath, ME | 43 mi | May 10 | Oct 6 |
Frequently asked questions
When is the last frost in Biddeford?
On average, the last spring frost (32°F) in Biddeford is around May 9. In about 1 year in 10 it comes after May 22, and in 9 years in 10 it comes after April 28.
When is the first frost in Biddeford?
The first fall frost (32°F) usually arrives around October 3. There’s a 10% chance of a freeze by September 20 and a 90% chance by October 19.
Can it frost in Biddeford 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 Biddeford?
Biddeford is in USDA Plant Hardiness Zone 6a (average annual extreme minimum temperature −10 to −5°F), based on the 2023 USDA map for ZIP code 04046. See growing zones in Maine.
More: all Maine frost dates · Maine growing zones · frost vs. freeze