Frost dates for 77991Vanderbilt, TX
The average last spring frost in Vanderbilt is February 1 and the average first fall frost is December 21, giving a typical growing season of about 321 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Feb 1
- Average first fall frost
- Dec 21
- Growing season
- 321 days
Safer after Mar 4 (1-in-10 risk)
Possible by Nov 25 (1-in-10 risk)
First frost typically in 55 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Jan 25 · Feb 22 · Mar 18 | Nov 10 · Dec 3 · Dec 28 | 285 days | 100% |
| Frost / freeze (32°F) | Dec 24 · Feb 1 · Mar 4 | Nov 25 · Dec 21 · Jan 18 | 321 days | 93% |
| Hard freeze (28°F) | Dec 17 · Jan 21 · Feb 23 | Dec 8 · Jan 1 · Feb 6 | 358 days | 58% |
Where these dates come from
ZIP code 77991 is matched to the NOAA station Pt Comfort, TX, 17.3 km away, at 20 ft elevation (20 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Pt Comfort, TX (used) | 20 ft | Feb 1 | Dec 21 |
| Victoria Rgnl Ap, TX | 104 ft | Feb 4 | Dec 9 |
| Victoria Rgnl Ap, TX | 115 ft | Feb 18 | Dec 4 |
| Palacios Muni Ap, TX | 12 ft | Feb 1 | Dec 17 |
Frost dates near Vanderbilt
- La Salle, TX 77969 · last Feb 1, first Dec 21
- Lolita, TX 77971 · last Feb 1, first Dec 21
- La Ward, TX 77970 · last Feb 1, first Dec 21
- Point Comfort, TX 77978 · last Feb 1, first Dec 21
- Edna, TX 77957 · last Feb 4, first Dec 9
- Inez, TX 77968 · last Feb 4, first Dec 9
- Port Lavaca, TX 77979 · last Feb 1, first Dec 21
- Placedo, TX 77977 · last Feb 4, first Dec 9
Frequently asked questions
- When is the last frost in Vanderbilt, TX?
- For ZIP code 77991, the average last spring frost (32°F) is February 1, based on NOAA 1991-2020 climate normals for the Pt Comfort, TX weather station. There is a 1-in-10 chance of a frost after March 4.
- When is the first frost in Vanderbilt, TX?
- The average first fall frost (32°F) is December 21. There is a 1-in-10 chance of frost by November 25, so tender plants are at risk from that point on.
- How long is the growing season in 77991?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 321 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.