FrostDateByZip

Frost dates for 77541Freeport, TX

The average last spring frost in Freeport is January 27 and the average first fall frost is January 1, giving a typical growing season of about 338 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Jan 27

Safer after Feb 28 (1-in-10 risk)

Average first fall frost
Jan 1

Possible by Dec 1 (1-in-10 risk)

Growing season
338 days

First frost typically in 67 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.
TemperatureLast spring: 90% / 50% / 10% chanceFirst fall: 10% / 50% / 90% chanceGrowing season (50%)Years with at least one
Light frost (36°F)Jan 14 · Feb 12 · Mar 9Nov 17 · Dec 10 · Jan 8303 days99%
Frost / freeze (32°F)Dec 24 · Jan 27 · Feb 28Dec 1 · Jan 1 · Jan 30338 days82%
Hard freeze (28°F)Dec 23 · Jan 18 · Feb 14Dec 14 · Jan 8 · Feb 4365 days42%

Where these dates come from

ZIP code 77541 is matched to the NOAA station Freeport 2 Nw, TX, 7.1 km away, at 8 ft elevation (5 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Freeport 2 Nw, TX (used)8 ftJan 27Jan 1
Angleton Brazoria Ap, TX25 ftFeb 13Dec 8
Angleton 2 W, TX27 ftJan 29Dec 31
Alvin, TX28 ftFeb 14Dec 5

Frost dates near Freeport

Frequently asked questions

When is the last frost in Freeport, TX?
For ZIP code 77541, the average last spring frost (32°F) is January 27, based on NOAA 1991-2020 climate normals for the Freeport 2 Nw, TX weather station. There is a 1-in-10 chance of a frost after February 28.
When is the first frost in Freeport, TX?
The average first fall frost (32°F) is January 1. There is a 1-in-10 chance of frost by December 1, so tender plants are at risk from that point on.
How long is the growing season in 77541?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 338 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.