When to plant in Marblehead, MA
USDA Zone 7aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Marblehead, Massachusetts — all computed from Marblehead's nearest NOAA weather station.
In zone 7a, Marblehead supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
The average last spring frost in Marblehead is now 8 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
MARBLEHEAD · 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 Marblehead’s own odds, recorded at MARBLEHEAD.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 26 | May 9 | Apr 26 | Sep 28 | Oct 9 | Oct 23 |
| 32°F | May 13 | Apr 25 | Apr 12 | Oct 5 | Oct 20 | Nov 3 |
| 28°F | Apr 27 | Apr 11 | Apr 1 | Oct 17 | Oct 31 | Nov 15 |
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 Marblehead, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 12 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.
Marblehead planting FAQ
When is the last spring frost in Marblehead, MA?
Plan for the last spring frost in Marblehead around April 25 (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 Marblehead, MA?
In Marblehead, the first 32°F freeze of fall lands around October 20 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Marblehead in?
Marblehead is in USDA hardiness zone 7a. In zone 7a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Marblehead?
Marblehead has about 178 frost-free days — a moderate growing season — between the average last spring frost (April 25) and first fall frost (October 20).
When should I plant tomatoes in Marblehead?
For Marblehead, sow tomatoes indoors about February 28–March 14 and move the seedlings out around May 2, after the last spring frost.
Never miss a window in Marblehead
An email when it’s time to start seeds, transplant, and sow — timed to Marblehead’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at MARBLEHEAD, 2 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 Marblehead, MA — Frost Dates & Zone 7a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00194502. Retrieved from https://blissgarden.com/massachusetts/marblehead.