When is the last frost in Linn, TX?

For ZIP code 78563, the average last spring frost (32°F) is January 22, based on NOAA 1991-2020 climate normals for the Mccook, TX weather station. There is a 1-in-10 chance of a frost after March 5.

When is the first frost in Linn, TX?

The average first fall frost (32°F) is December 19. There is a 1-in-10 chance of frost by November 26, so tender plants are at risk from that point on.

How long is the growing season in 78563?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 333 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 78563Linn, TX

The average last spring frost in Linn is January 22 and the average first fall frost is December 19, giving a typical growing season of about 333 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 22
Average first fall frost: Dec 19
Growing season: 333 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 11 · Feb 18 · Mar 13	Nov 13 · Dec 4 · Jan 1	292 days	99%
Frost / freeze (32°F)	Dec 19 · Jan 22 · Mar 5	Nov 26 · Dec 19 · Jan 23	333 days	86%
Hard freeze (28°F)	Dec 11 · Jan 6 · Feb 16	Dec 5 · Jan 1 · Feb 3	365 days	48%

Where these dates come from

ZIP code 78563 is matched to the NOAA station Mccook, TX, 14.4 km away, at 220 ft elevation (102 ft higher than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Mccook, TX (used)	220 ft	Jan 22	Dec 19
San Manuel, TX	75 ft	Jan 25	Jan 1
Edinburg 17 Nne, TX	64 ft	Jan 21	Dec 23
La Joya, TX	213 ft	Jan 23	Dec 28

Frost dates near Linn

Delmita, TX 78536 · last Jan 22, first Dec 19
Edinburg, TX 78541 · last Jan 23, first Dec 28
San Isidro, TX 78588 · last Jan 22, first Dec 19
Santa Elena, TX 78591 · last Jan 23, first Dec 28
Hargill, TX 78549 · last Jan 21, first Dec 23
Encino, TX 78353 · last Feb 25, first Dec 1
Mission, TX 78574 · last Jan 23, first Dec 28
Lasara, TX 78561 · last Jan 21, first Dec 26

Frequently asked questions

When is the last frost in Linn, TX?: For ZIP code 78563, the average last spring frost (32°F) is January 22, based on NOAA 1991-2020 climate normals for the Mccook, TX weather station. There is a 1-in-10 chance of a frost after March 5.
When is the first frost in Linn, TX?: The average first fall frost (32°F) is December 19. There is a 1-in-10 chance of frost by November 26, so tender plants are at risk from that point on.
How long is the growing season in 78563?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 333 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.