Frost Dates for Casselberry, FL
In Casselberry, FL, the average last spring frost is around Jan 17 and the average first fall frost around Jan 13, for a growing season of about 365 days. For frost-tender plants, wait until Feb 9, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Orlando Executive Airport, FL weather station, 8 miles away, elevation 108 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 9 | Dec 23 |
| 20% | Feb 3 | Dec 29 |
| 30% | Jan 30 | Jan 3 |
| 40% | Jan 23 | Jan 8 |
| 50% | Jan 17 | Jan 13 |
| 60% | Jan 13 | Jan 18 |
| 70% | Jan 8 | Jan 22 |
| 80% | Jan 3 | Jan 29 |
| 90% | Dec 26 | 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) | Jan 25 | Jan 6 |
| Frost / freeze (32°F) | Jan 17 | Jan 13 |
| Hard freeze (28°F) | — | — |
Planting calendar for Casselberry
Transplant Jan 24 – Feb 7
Transplant Jan 31 – Feb 14
Transplant Jan 31 – Feb 14
Transplant Jan 24 – Feb 7
Sow or transplant Jan 24 – Feb 7
Sow or transplant Jan 24 – Feb 7
Sow or transplant Jan 31 – Feb 14
Sow or transplant Dec 20 – Jan 3
Fall sowing Nov 18 – Dec 16
Fall sowing Nov 18 – Dec 9
Fall sowing Nov 4 – Nov 18
Sow or transplant Dec 20 – Jan 3
Fall sowing Nov 4 – Dec 2
Transplant Jan 3 – Jan 17
Fall sowing Oct 21 – Nov 4
Transplant Dec 27 – Jan 10
Fall sowing Oct 21 – Nov 4
Fall sowing Oct 21 – Nov 4
Fall sowing Dec 2 – Dec 23
Fall sowing Nov 4 – Nov 18
Plant Dec 20 – Jan 3
Based on the average last frost (Jan 17) and first frost (Jan 13). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.