Frost Dates for Jacksonville, FL
In Jacksonville, FL, the average last spring frost is around Feb 1 and the average first fall frost around Jan 5, for a growing season of about 330 days. For frost-tender plants, wait until Mar 3, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Jacksonville Nas, FL weather station, 7 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% | Mar 3 | Dec 3 |
| 20% | Feb 24 | Dec 12 |
| 30% | Feb 15 | Dec 24 |
| 40% | Feb 7 | Dec 31 |
| 50% | Feb 1 | Jan 5 |
| 60% | Jan 26 | Jan 11 |
| 70% | Jan 19 | Jan 16 |
| 80% | Jan 11 | Jan 26 |
| 90% | Dec 31 | Feb 6 |
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) | Feb 18 | Dec 17 |
| Frost / freeze (32°F) | Feb 1 | Jan 5 |
| Hard freeze (28°F) | Jan 22 | Jan 14 |
Planting calendar for Jacksonville
Transplant Feb 8 – Feb 22
Transplant Feb 15 – Mar 1
Transplant Feb 15 – Mar 1
Transplant Feb 8 – Feb 22
Sow or transplant Feb 8 – Feb 22
Sow or transplant Feb 8 – Feb 22
Sow or transplant Feb 15 – Mar 1
Sow or transplant Jan 4 – Jan 18
Fall sowing Nov 10 – Dec 8
Fall sowing Nov 10 – Dec 1
Fall sowing Oct 27 – Nov 10
Sow or transplant Jan 4 – Jan 18
Fall sowing Oct 27 – Nov 24
Transplant Jan 18 – Feb 1
Fall sowing Oct 13 – Oct 27
Transplant Jan 11 – Jan 25
Fall sowing Oct 13 – Oct 27
Fall sowing Oct 13 – Oct 27
Fall sowing Nov 24 – Dec 15
Fall sowing Oct 27 – Nov 10
Plant Jan 4 – Jan 18
Based on the average last frost (Feb 1) and first frost (Jan 5). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.