When is the last frost in Collegeport, TX?

For ZIP code 77428, the average last spring frost (32°F) is February 1, based on NOAA 1991-2020 climate normals for the Palacios Muni Ap, TX weather station. There is a 1-in-10 chance of a frost after March 7.

When is the first frost in Collegeport, TX?

The average first fall frost (32°F) is December 17. There is a 1-in-10 chance of frost by November 24, so tender plants are at risk from that point on.

How long is the growing season in 77428?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 319 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 77428Collegeport, TX

The average last spring frost in Collegeport is February 1 and the average first fall frost is December 17, giving a typical growing season of about 319 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Feb 1
Average first fall frost: Dec 17
Growing season: 319 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 25 · Feb 24 · Mar 16	Nov 10 · Nov 30 · Dec 25	279 days	100%
Frost / freeze (32°F)	Dec 30 · Feb 1 · Mar 7	Nov 24 · Dec 17 · Jan 18	319 days	93%
Hard freeze (28°F)	Dec 16 · Jan 18 · Feb 24	Dec 5 · Jan 2 · Feb 2	357 days	62%

Where these dates come from

ZIP code 77428 is matched to the NOAA station Palacios Muni Ap, TX, 7.7 km away, at 12 ft elevation (1 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Palacios Muni Ap, TX (used)	12 ft	Feb 1	Dec 17
Matagorda No 2, TX	10 ft	Feb 5	Dec 16
Bay City Wtr Wks, TX	52 ft	Feb 20	Dec 3
Danevang 1 W, TX	70 ft	Feb 15	Dec 8

Frost dates near Collegeport

Palacios, TX 77465 · last Feb 1, first Dec 17
Blessing, TX 77419 · last Feb 1, first Dec 17
Elmaton, TX 77440 · last Feb 20, first Dec 3
Matagorda, TX 77457 · last Feb 5, first Dec 16
Francitas, TX 77961 · last Feb 1, first Dec 17
Midfield, TX 77458 · last Feb 15, first Dec 8
Markham, TX 77456 · last Feb 20, first Dec 3
Wadsworth, TX 77483 · last Feb 5, first Dec 16

Frequently asked questions

When is the last frost in Collegeport, TX?: For ZIP code 77428, the average last spring frost (32°F) is February 1, based on NOAA 1991-2020 climate normals for the Palacios Muni Ap, TX weather station. There is a 1-in-10 chance of a frost after March 7.
When is the first frost in Collegeport, TX?: The average first fall frost (32°F) is December 17. There is a 1-in-10 chance of frost by November 24, so tender plants are at risk from that point on.
How long is the growing season in 77428?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 319 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.