Frost dates for 78596Weslaco, TX
Frost occurs in about 44% of years near Weslaco, based on NOAA 1991-2020 records for the Weslaco, TX station.
Frost occurs in about 44% of years. Frost-tender plants can usually grow year-round, but cover them if a rare cold snap is forecast.
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) | Dec 18 · Jan 28 · Mar 1 | Nov 25 · Dec 19 · Jan 27 | 331 days | 85% |
| Frost / freeze (32°F) | Dec 8 · Jan 8 · Feb 18 | Dec 3 · Dec 31 · Feb 7 | 365 days | 44% |
| Hard freeze (28°F) | — | — | 365 days | 10% |
Where these dates come from
ZIP code 78596 is matched to the NOAA station Weslaco, TX, 2 km away, at 75 ft elevation (3 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Weslaco, TX (used) | 75 ft | Jan 8 | Dec 31 |
| Santa Rosa 3 Wnw, TX | 50 ft | Jan 10 | Dec 27 |
| Edinburg, TX | 96 ft | Jan 8 | Jan 2 |
| Mcallen, TX | 100 ft | Jan 9 | Jan 1 |
Frost dates near Weslaco
- Weslaco, TX 78599 · last Jan 8, first Dec 31
- Donna, TX 78537 · last Jan 8, first Dec 31
- Mercedes, TX 78570 · last Jan 8, first Dec 31
- Progreso, TX 78579 · last Jan 8, first Dec 31
- Alamo, TX 78516 · last Jan 8, first Jan 2
- Elsa, TX 78543 · last Jan 10, first Dec 27
- La Blanca, TX 78558 · last Jan 8, first Jan 2
- La Villa, TX 78562 · last Jan 10, first Dec 27
Frequently asked questions
- When is the last frost in Weslaco, TX?
- Frost occurs in about 44% of years at the nearest NOAA station (Weslaco, TX), so there is no reliable average last frost date.
- When is the first frost in Weslaco, TX?
- Frost occurs in about 44% of years at the nearest NOAA station.
- 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.