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Will it freeze in Greenfield in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Wed, Nov 11: 26°F (Wed, Nov 11, 6:00 PM EST to Thu, Nov 12, 6:00 AM EST).
Tonight: forecast low 58°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 58°F Above 36°F · Patchy Fog then Chance Light Rain
- Fri, Nov 6 52°F Above 36°F · Chance Light Rain
- Sat, Nov 7 43°F Above 36°F · Light Rain
- Sun, Nov 8 36°F Frost possible · Partly Cloudy then Slight Chance Light Rain
- Mon, Nov 9 33°F Frost possible · Mostly Clear
- Tue, Nov 10 33°F Frost possible · Mostly Clear
- Wed, Nov 11 26°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 Greenfield
The median first fall hard-freeze date (28°F) is October 25, from NOAA’s 1991–2020 Climate Normals at Greenfield #3. 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 | Apr 30 · May 13 · May 28 | Sep 19 · Oct 1 · Oct 14 | 142 days |
| 32°F freeze | Apr 19 · May 1 · May 15 | Sep 29 · Oct 11 · Oct 28 | 162 days |
| 28°F hard freeze | Apr 6 · Apr 18 · May 4 | Oct 8 · Oct 25 · Nov 7 | 189 days |
Average high temperature by month
1991–2020 normals at Greenfield #3
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 Greenfield, MA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Greenfield #3 (station USC00193229, elevation 130 ft), 3.0 mi from Greenfield. 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 Greenfield
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Amherst, MA | 18 mi | May 5 | Oct 8 |
| Northampton, MA | 21 mi | May 5 | Oct 8 |
| Easthampton, MA | 24 mi | May 3 | Oct 8 |
| North Adams, MA | 27 mi | May 10 | Oct 4 |
| Keene, NH | 28 mi | May 14 | Oct 1 |
| Holyoke, MA | 28 mi | May 3 | Oct 8 |
| Chicopee, MA | 30 mi | May 3 | Oct 8 |
| Gardner, MA | 31 mi | May 2 | Oct 13 |
| Palmer, MA | 33 mi | May 3 | Oct 14 |
| Westfield, MA | 34 mi | May 3 | Oct 8 |
Frequently asked questions
When is the last frost in Greenfield?
On average, the last spring frost (32°F) in Greenfield is around May 1. In about 1 year in 10 it comes after May 15, and in 9 years in 10 it comes after April 19.
When is the first frost in Greenfield?
The first fall frost (32°F) usually arrives around October 11. There’s a 10% chance of a freeze by September 29 and a 90% chance by October 28.
Can it frost in Greenfield 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 13.
What growing zone is Greenfield?
Greenfield 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 01301. See growing zones in Massachusetts.
More: all Massachusetts frost dates · Massachusetts growing zones · frost vs. freeze