Frost Dates for Alvin, TX
In Alvin, TX, the average last spring frost is around Feb 14 and the average first fall frost around Dec 5, for a growing season of about 298 days. For frost-tender plants, wait until Mar 13, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Alvin, TX weather station, 4 miles away, elevation 28 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 13 | Nov 14 |
| 20% | Mar 6 | Nov 21 |
| 30% | Feb 28 | Nov 26 |
| 40% | Feb 23 | Dec 1 |
| 50% | Feb 14 | Dec 5 |
| 60% | Feb 5 | Dec 10 |
| 70% | Jan 31 | Dec 18 |
| 80% | Jan 24 | Dec 31 |
| 90% | Jan 15 | Jan 8 |
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 5 | Nov 23 |
| Frost / freeze (32°F) | Feb 14 | Dec 5 |
| Hard freeze (28°F) | Jan 25 | Dec 30 |
Planting calendar for Alvin
Transplant Feb 21 – Mar 7
Transplant Feb 28 – Mar 14
Transplant Feb 28 – Mar 14
Transplant Feb 21 – Mar 7
Sow or transplant Feb 21 – Mar 7
Sow or transplant Feb 21 – Mar 7
Sow or transplant Feb 28 – Mar 14
Sow or transplant Jan 17 – Jan 31
Fall sowing Oct 10 – Nov 7
Fall sowing Oct 10 – Oct 31
Fall sowing Sep 26 – Oct 10
Sow or transplant Jan 17 – Jan 31
Fall sowing Sep 26 – Oct 24
Transplant Jan 31 – Feb 14
Fall sowing Sep 12 – Sep 26
Transplant Jan 24 – Feb 7
Fall sowing Sep 12 – Sep 26
Fall sowing Sep 12 – Sep 26
Fall sowing Oct 24 – Nov 14
Fall sowing Sep 26 – Oct 10
Plant Jan 17 – Jan 31
Based on the average last frost (Feb 14) and first frost (Dec 5). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.