When is the last frost in Robstown, TX?

For ZIP code 78380, the average last spring frost (32°F) is January 26, based on NOAA 1991-2020 climate normals for the Robstown, TX weather station. There is a 1-in-10 chance of a frost after March 3.

When is the first frost in Robstown, TX?

The average first fall frost (32°F) is December 24. There is a 1-in-10 chance of frost by November 28, so tender plants are at risk from that point on.

How long is the growing season in 78380?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 336 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.

Frost dates for 78380Robstown, TX

The average last spring frost in Robstown is January 26 and the average first fall frost is December 24, giving a typical growing season of about 336 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 26
Average first fall frost: Dec 24
Growing season: 336 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.

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)	Jan 13 · Feb 15 · Mar 12	Nov 16 · Dec 8 · Jan 7	297 days	99%
Frost / freeze (32°F)	Dec 18 · Jan 26 · Mar 3	Nov 28 · Dec 24 · Feb 2	336 days	82%
Hard freeze (28°F)	Dec 10 · Jan 10 · Feb 15	Dec 7 · Jan 2 · Feb 6	365 days	36%

Where these dates come from

ZIP code 78380 is matched to the NOAA station Robstown, TX, 3.8 km away, at 85 ft elevation (3 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Robstown, TX (used)	85 ft	Jan 26	Dec 24
Corpus Christi, TX	45 ft	Jan 28	Dec 21
Corpus Christi Nws, TX	44 ft	Jan 31	Dec 22
Bishop, TX	67 ft	Feb 13	Dec 7

Frost dates near Robstown

Banquete, TX 78339 · last Jan 26, first Dec 24
Corpus Christi, TX 78410 · last Jan 26, first Dec 24
Driscoll, TX 78351 · last Jan 26, first Dec 24
Odem, TX 78370 · last Feb 1, first Dec 17
Edroy, TX 78352 · last Feb 1, first Dec 17
Agua Dulce, TX 78330 · last Feb 5, first Dec 10
Bishop, TX 78343 · last Jan 25, first Dec 20
Sandia, TX 78383 · last Jan 31, first Dec 23

Frequently asked questions

When is the last frost in Robstown, TX?: For ZIP code 78380, the average last spring frost (32°F) is January 26, based on NOAA 1991-2020 climate normals for the Robstown, TX weather station. There is a 1-in-10 chance of a frost after March 3.
When is the first frost in Robstown, TX?: The average first fall frost (32°F) is December 24. There is a 1-in-10 chance of frost by November 28, so tender plants are at risk from that point on.
How long is the growing season in 78380?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 336 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.