Frost Dates for Pasadena, TX
In Pasadena, TX, the average last spring frost is around Jan 30 and the average first fall frost around Dec 28, for a growing season of about 330 days. For frost-tender plants, wait until Mar 1, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Houston Hobby Airport, TX weather station, 8 miles away, elevation 44 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 1 | Nov 27 |
| 20% | Feb 21 | Dec 5 |
| 30% | Feb 10 | Dec 10 |
| 40% | Feb 4 | Dec 20 |
| 50% | Jan 30 | Dec 28 |
| 60% | Jan 24 | Jan 2 |
| 70% | Jan 18 | Jan 7 |
| 80% | Jan 10 | Jan 15 |
| 90% | Dec 29 | Jan 27 |
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 17 | Dec 4 |
| Frost / freeze (32°F) | Jan 30 | Dec 28 |
| Hard freeze (28°F) | Jan 17 | Jan 8 |
Planting calendar for Pasadena
Transplant Feb 6 – Feb 20
Transplant Feb 13 – Feb 27
Transplant Feb 13 – Feb 27
Transplant Feb 6 – Feb 20
Sow or transplant Feb 6 – Feb 20
Sow or transplant Feb 6 – Feb 20
Sow or transplant Feb 13 – Feb 27
Sow or transplant Jan 2 – Jan 16
Fall sowing Nov 2 – Nov 30
Fall sowing Nov 2 – Nov 23
Fall sowing Oct 19 – Nov 2
Sow or transplant Jan 2 – Jan 16
Fall sowing Oct 19 – Nov 16
Transplant Jan 16 – Jan 30
Fall sowing Oct 5 – Oct 19
Transplant Jan 9 – Jan 23
Fall sowing Oct 5 – Oct 19
Fall sowing Oct 5 – Oct 19
Fall sowing Nov 16 – Dec 7
Fall sowing Oct 19 – Nov 2
Plant Jan 2 – Jan 16
Based on the average last frost (Jan 30) and first frost (Dec 28). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.