Frost dates 2026–2027

Frost dates for Gardner, Massachusetts

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Ashburnham, 4.3 mi away (close match).

Last spring frostMay 2
First fall frostOct 13
163 frost-free days
Last spring frostMay 21 year in 10 after May 16
First fall frostOct 131 year in 10 by Oct 1
Growing season163 daysbetween median 32°F dates
Hardiness zoneZone 5b−15 to −10°F average extreme low

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Will it freeze in Gardner 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 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.

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 Gardner

The median first fall hard-freeze date (28°F) is October 25, from NOAA’s 1991–2020 Climate Normals at Ashburnham. This is the 50% probability date, not a forecast for this year.

TemperatureLast 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 14 · May 27 Sep 22 · Oct 2 · Oct 15 142 days
32°F freeze Apr 19 · May 2 · May 16 Oct 1 · Oct 13 · Oct 30 163 days
28°F hard freeze Apr 4 · Apr 18 · May 3 Oct 9 · Oct 25 · Nov 10 189 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00190190. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Ashburnham

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 Gardner, MA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Ashburnham (station USC00190190, elevation 1,108 ft), 4.3 mi from Gardner. 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 Gardner

CityDistanceLast spring frostFirst fall frost
Fitchburg, MA 8.7 mi May 1 Oct 9
Leominster, MA 12 mi Apr 29 Oct 11
Worcester, MA 24 mi Apr 23 Oct 21
Marlborough, MA 28 mi May 2 Oct 6
Nashua, NH 28 mi Apr 29 Oct 8
Keene, NH 30 mi May 14 Oct 1
Amherst, MA 30 mi May 5 Oct 8
Greenfield, MA 31 mi May 1 Oct 11
Palmer, MA 32 mi May 3 Oct 14
Framingham, MA 34 mi Apr 26 Oct 12

Frequently asked questions

When is the last frost in Gardner?

On average, the last spring frost (32°F) in Gardner is around May 2. In about 1 year in 10 it comes after May 16, and in 9 years in 10 it comes after April 19.

When is the first frost in Gardner?

The first fall frost (32°F) usually arrives around October 13. There’s a 10% chance of a freeze by October 1 and a 90% chance by October 30.

Can it frost in Gardner 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 14.

What growing zone is Gardner?

Gardner 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 01440. See growing zones in Massachusetts.

More: all Massachusetts frost dates · Massachusetts growing zones · frost vs. freeze