When to plant in Milford, MA
USDA Zone 6bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Milford, Massachusetts — all computed from Milford's nearest NOAA weather station.
In zone 6b, Milford gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
The average first fall frost in Milford is now 5 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
WEST MEDWAY · 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 Milford’s own odds, recorded at WEST MEDWAY.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 25 | May 11 | Apr 28 | Sep 20 | Oct 1 | Oct 12 |
| 32°F | May 14 | Apr 30 | Apr 17 | Sep 29 | Oct 9 | Oct 23 |
| 28°F | May 1 | Apr 16 | Apr 2 | Oct 7 | Oct 22 | Nov 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 Milford, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 20 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.
Milford planting FAQ
When is the last spring frost in Milford, MA?
Plan for the last spring frost in Milford around April 30 (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 Milford, MA?
In Milford, the first 32°F freeze of fall lands around October 9 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Milford in?
Milford 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 Milford?
Milford has about 162 frost-free days — a moderate growing season — between the average last spring frost (April 30) and first fall frost (October 9).
When should I plant tomatoes in Milford?
For Milford, sow tomatoes indoors about March 5–March 19 and move the seedlings out around May 7, after the last spring frost.
Never miss a window in Milford
An email when it’s time to start seeds, transplant, and sow — timed to Milford’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Franklin Town · 11 km
- Woonsocket · 17 km
- Framingham · 19 km
- Marlborough · 22 km
- North Attleborough Town · 25 km
- Wellesley · 26 km
- Norwood · 27 km
- Needham · 27 km
Frost dates recorded at WEST MEDWAY, 7 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 Milford, MA — Frost Dates & Zone 6b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00199316. Retrieved from https://blissgarden.com/massachusetts/milford.