When to plant in Attleboro, MA
USDA Zone 6bEverything below — frost dates, hardiness zone, and what to plant when in Attleboro, Massachusetts — is derived from the closest NOAA station with complete climate normals.
In zone 6b, Attleboro gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
The average first fall frost in Attleboro is now 8 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
NORTON W · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Attleboro’s own odds, recorded at NORTON W.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 23 | May 9 | Apr 26 | Sep 20 | Oct 4 | Oct 17 |
| 32°F | May 10 | Apr 27 | Apr 14 | Oct 1 | Oct 15 | Oct 30 |
| 28°F | May 2 | Apr 16 | Apr 1 | Oct 12 | Oct 28 | Nov 11 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Attleboro, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 17 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Attleboro planting FAQ
When is the last spring frost in Attleboro, MA?
Plan for the last spring frost in Attleboro around April 27 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Attleboro, MA?
Expect Attleboro's first fall frost near October 15 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Attleboro in?
Attleboro is in USDA hardiness zone 6b. In zone 6b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Attleboro?
Attleboro has about 171 frost-free days — a moderate growing season — between the average last spring frost (April 27) and first fall frost (October 15).
When should I plant tomatoes in Attleboro?
For Attleboro, sow tomatoes indoors about March 2–March 16 and move the seedlings out around May 4, after the last spring frost.
Never miss a window in Attleboro
An email when it’s time to start seeds, transplant, and sow — timed to Attleboro’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- North Attleborough Town · 5 km
- Valley Falls · 8 km
- Pawtucket · 9 km
- Central Falls · 9 km
- East Providence · 16 km
- Providence · 16 km
- Taunton · 17 km
- Woonsocket · 19 km
Frost dates recorded at NORTON W, 13 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Attleboro, MA — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00195984. Retrieved from https://blissgarden.com/massachusetts/attleboro.