Frost Dates for Boynton Beach, FL
In Boynton Beach, FL, the average last spring frost is around Jan 22 and the average first fall frost around Jan 17, for a growing season of about 365 days. For frost-tender plants, wait until Feb 7, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Loxahatchee Nwr, FL weather station, 9 miles away, elevation 21 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% | Feb 7 | Dec 31 |
| 20% | Feb 3 | Jan 3 |
| 30% | Jan 31 | Jan 7 |
| 40% | Jan 28 | Jan 8 |
| 50% | Jan 22 | Jan 17 |
| 60% | Jan 14 | Jan 24 |
| 70% | Jan 8 | Jan 29 |
| 80% | Jan 5 | Feb 2 |
| 90% | Dec 31 | Feb 5 |
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) | Jan 26 | Jan 16 |
| Frost / freeze (32°F) | Jan 22 | Jan 17 |
| Hard freeze (28°F) | — | — |
Planting calendar for Boynton Beach
Transplant Jan 29 – Feb 12
Transplant Feb 5 – Feb 19
Transplant Feb 5 – Feb 19
Transplant Jan 29 – Feb 12
Sow or transplant Jan 29 – Feb 12
Sow or transplant Jan 29 – Feb 12
Sow or transplant Feb 5 – Feb 19
Sow or transplant Dec 25 – Jan 8
Fall sowing Nov 22 – Dec 20
Fall sowing Nov 22 – Dec 13
Fall sowing Nov 8 – Nov 22
Sow or transplant Dec 25 – Jan 8
Fall sowing Nov 8 – Dec 6
Transplant Jan 8 – Jan 22
Fall sowing Oct 25 – Nov 8
Transplant Jan 1 – Jan 15
Fall sowing Oct 25 – Nov 8
Fall sowing Oct 25 – Nov 8
Fall sowing Dec 6 – Dec 27
Fall sowing Nov 8 – Nov 22
Plant Dec 25 – Jan 8
Based on the average last frost (Jan 22) and first frost (Jan 17). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.