When is the last frost in South Padre Island, TX?

Frost occurs in about 35% of years at the nearest NOAA station (Port Isabel Cameron Ap, TX), so there is no reliable average last frost date.

When is the first frost in South Padre Island, TX?

Frost occurs in about 35% 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.

Frost dates for 78597South Padre Island, TX

Frost occurs in about 35% of years near South Padre Island, based on NOAA 1991-2020 records for the Port Isabel Cameron Ap, TX station.

Frost occurs in about 35% 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.

Spring dates: chance of a frost AFTER the date. Fall dates: chance of a frost BEFORE the date.
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 20 · Jan 22 · Feb 26	Dec 1 · Dec 29 · Jan 31	340 days	80%
Frost / freeze (32°F)	Dec 16 · Jan 8 · Feb 7	Dec 10 · Jan 4 · Feb 4	365 days	35%
Hard freeze (28°F)	—	—	365 days	7%

Where these dates come from

ZIP code 78597 is matched to the NOAA station Port Isabel Cameron Ap, TX, 17.2 km away, at 19 ft elevation (19 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Port Isabel Cameron Ap, TX (used)	19 ft	Jan 8	Jan 4
S Padre Is, TX	5 ft	—	—
Port Isabel, TX	17 ft	Jan 3	Jan 1
Port Mansfield, TX	9 ft	Jan 12	Jan 1

Frost dates near South Padre Island

Port Isabel, TX 78578 · last Jan 3, first Jan 1
Los Fresnos, TX 78566 · last Jan 8, first Jan 4
Lozano, TX 78568 · last Jan 8, first Dec 29
Rio Hondo, TX 78583 · last Jan 8, first Dec 29
Brownsville, TX 78526 · last Jan 6, first Jan 2
Port Mansfield, TX 78598 · last Jan 12, first Jan 1
Olmito, TX 78575 · last Jan 6, first Jan 2
San Benito, TX 78586 · last Jan 9, first Jan 3

Frequently asked questions

When is the last frost in South Padre Island, TX?: Frost occurs in about 35% of years at the nearest NOAA station (Port Isabel Cameron Ap, TX), so there is no reliable average last frost date.
When is the first frost in South Padre Island, TX?: Frost occurs in about 35% 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.