Frost Dates for Huntsville, TX
In Huntsville, TX, the average last spring frost is around Mar 1 and the average first fall frost around Nov 28, for a growing season of about 272 days. For frost-tender plants, wait until Mar 22, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Huntsville, TX weather station, under 1 mile away, elevation 494 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 22 | Nov 6 |
| 20% | Mar 15 | Nov 13 |
| 30% | Mar 10 | Nov 18 |
| 40% | Mar 4 | Nov 23 |
| 50% | Mar 1 | Nov 28 |
| 60% | Feb 25 | Dec 2 |
| 70% | Feb 19 | Dec 7 |
| 80% | Feb 13 | Dec 12 |
| 90% | Feb 2 | Dec 21 |
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) | Mar 14 | Nov 16 |
| Frost / freeze (32°F) | Mar 1 | Nov 28 |
| Hard freeze (28°F) | Feb 12 | Dec 13 |
Planting calendar for Huntsville
Transplant Mar 8 – Mar 22
Transplant Mar 15 – Mar 29
Transplant Mar 15 – Mar 29
Transplant Mar 8 – Mar 22
Sow or transplant Mar 8 – Mar 22
Sow or transplant Mar 8 – Mar 22
Sow or transplant Mar 15 – Mar 29
Sow or transplant Feb 1 – Feb 15
Fall sowing Oct 3 – Oct 31
Fall sowing Oct 3 – Oct 24
Fall sowing Sep 19 – Oct 3
Sow or transplant Feb 1 – Feb 15
Fall sowing Sep 19 – Oct 17
Transplant Feb 15 – Mar 1
Fall sowing Sep 5 – Sep 19
Transplant Feb 8 – Feb 22
Fall sowing Sep 5 – Sep 19
Fall sowing Sep 5 – Sep 19
Fall sowing Oct 17 – Nov 7
Fall sowing Sep 19 – Oct 3
Plant Feb 1 – Feb 15
Based on the average last frost (Mar 1) and first frost (Nov 28). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.