Frost Dates for Riviera Beach, FL
In Riviera Beach, FL, the average last spring frost is around Jan 21 and the average first fall frost around Jan 15, for a growing season of about 365 days. For frost-tender plants, wait until Feb 12, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Palm Beach Gardens, FL weather station, 5 miles away, elevation 20 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 12 | Dec 25 |
| 20% | Feb 6 | Jan 1 |
| 30% | Feb 2 | Jan 5 |
| 40% | Jan 28 | Jan 10 |
| 50% | Jan 21 | Jan 15 |
| 60% | Jan 14 | Jan 24 |
| 70% | Jan 8 | Feb 1 |
| 80% | Jan 3 | Feb 3 |
| 90% | Dec 29 | Feb 9 |
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 31 | Jan 17 |
| Frost / freeze (32°F) | Jan 21 | Jan 15 |
| Hard freeze (28°F) | — | — |
Planting calendar for Riviera Beach
Transplant Jan 28 – Feb 11
Transplant Feb 4 – Feb 18
Transplant Feb 4 – Feb 18
Transplant Jan 28 – Feb 11
Sow or transplant Jan 28 – Feb 11
Sow or transplant Jan 28 – Feb 11
Sow or transplant Feb 4 – Feb 18
Sow or transplant Dec 24 – Jan 7
Fall sowing Nov 20 – Dec 18
Fall sowing Nov 20 – Dec 11
Fall sowing Nov 6 – Nov 20
Sow or transplant Dec 24 – Jan 7
Fall sowing Nov 6 – Dec 4
Transplant Jan 7 – Jan 21
Fall sowing Oct 23 – Nov 6
Transplant Dec 31 – Jan 14
Fall sowing Oct 23 – Nov 6
Fall sowing Oct 23 – Nov 6
Fall sowing Dec 4 – Dec 25
Fall sowing Nov 6 – Nov 20
Plant Dec 24 – Jan 7
Based on the average last frost (Jan 21) and first frost (Jan 15). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.