When to plant in Malden, MA
USDA Zone 6bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Malden, Massachusetts — all computed from Malden's nearest NOAA weather station.
Zone 6b means Malden sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
Frost probability
BOSTON LOGAN INTL AP · 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 Malden’s own odds, recorded at BOSTON LOGAN INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 1 | Apr 17 | Apr 6 | Oct 15 | Oct 29 | Nov 11 |
| 32°F | Apr 17 | Apr 4 | Mar 25 | Oct 29 | Nov 9 | Nov 22 |
| 28°F | Apr 6 | Mar 28 | Mar 15 | Nov 8 | Nov 21 | Dec 5 |
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 Malden, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 15 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.
Malden planting FAQ
When is the last spring frost in Malden, MA?
On average, the last spring frost in Malden is around April 4 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Malden, MA?
In Malden, the first 32°F freeze of fall lands around November 9 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Malden in?
Malden 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 Malden?
There are roughly 219 frost-free days in Malden (a long growing season), running from the average last frost around April 4 to the first fall frost near November 9.
When should I plant tomatoes in Malden?
In Malden, start tomato seeds indoors around February 7–February 21, then transplant seedlings outdoors around April 11 once the danger of frost has passed.
Never miss a window in Malden
An email when it’s time to start seeds, transplant, and sow — timed to Malden’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at BOSTON LOGAN INTL AP, 9 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 Malden, MA — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014739. Retrieved from https://blissgarden.com/massachusetts/malden.