Frost Dates for Malden, MA
In Malden, MA, the average last spring frost is around Apr 4 and the average first fall frost around Nov 9, for a growing season of about 218 days. For frost-tender plants, wait until Apr 17, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Boston Logan Intl. Airport, MA weather station, 5 miles away, elevation 12 ft. Frost can come earlier in low spots and valleys and later near cities and large lakes.
Frost probability by date
Chance of a 32°F frost after the spring date, or before the fall date.
| Chance | Last spring frost | First fall frost |
|---|---|---|
| 10% | Apr 17 | Oct 29 |
| 20% | Apr 11 | Nov 1 |
| 30% | Apr 8 | Nov 3 |
| 40% | Apr 6 | Nov 6 |
| 50% | Apr 4 | Nov 9 |
| 60% | Apr 3 | Nov 12 |
| 70% | Apr 1 | Nov 14 |
| 80% | Mar 30 | Nov 17 |
| 90% | Mar 25 | Nov 22 |
Light frost vs. hard freeze
Average (50%) dates for each temperature. Tender plants are damaged at 36°F; most hardy crops survive until 28°F.
| Temperature | Last in spring | First in fall |
|---|---|---|
| Light frost (36°F) | Apr 17 | Oct 29 |
| Frost / freeze (32°F) | Apr 4 | Nov 9 |
| Hard freeze (28°F) | Mar 28 | Nov 21 |
Planting calendar for Malden
Transplant Apr 11 – Apr 25
Transplant Apr 18 – May 2
Transplant Apr 18 – May 2
Transplant Apr 11 – Apr 25
Sow or transplant Apr 11 – Apr 25
Sow or transplant Apr 11 – Apr 25
Sow or transplant Apr 18 – May 2
Sow or transplant Mar 7 – Mar 21
Fall sowing Sep 14 – Oct 12
Fall sowing Sep 14 – Oct 5
Fall sowing Aug 31 – Sep 14
Sow or transplant Mar 7 – Mar 21
Fall sowing Aug 31 – Sep 28
Transplant Mar 21 – Apr 4
Fall sowing Aug 17 – Aug 31
Transplant Mar 14 – Mar 28
Fall sowing Aug 17 – Aug 31
Fall sowing Aug 17 – Aug 31
Fall sowing Sep 28 – Oct 19
Fall sowing Aug 31 – Sep 14
Plant Mar 7 – Mar 21
Based on the average last frost (Apr 4) and first frost (Nov 9). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.