When is the last frost in Edinburg, TX?

For ZIP code 78542, the average last spring frost (32°F) is January 21, based on NOAA 1991-2020 climate normals for the Edinburg 17 Nne, TX weather station. There is a 1-in-10 chance of a frost after February 28.

When is the first frost in Edinburg, TX?

The average first fall frost (32°F) is December 23. There is a 1-in-10 chance of frost by November 23, so tender plants are at risk from that point on.

How long is the growing season in 78542?

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.

Frost dates for 78542Edinburg, TX

The average last spring frost in Edinburg is January 21 and the average first fall frost is December 23, giving a typical growing season of about 338 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 21
Average first fall frost: Dec 23
Growing season: 338 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 4 · Feb 8 · Mar 10	Nov 14 · Dec 5 · Jan 6	304 days	99%
Frost / freeze (32°F)	Dec 11 · Jan 21 · Feb 28	Nov 23 · Dec 23 · Feb 1	338 days	78%
Hard freeze (28°F)	Dec 10 · Jan 4 · Feb 12	Dec 6 · Jan 1 · Feb 4	365 days	35%

Where these dates come from

ZIP code 78542 is matched to the NOAA station Edinburg 17 Nne, TX, 6.7 km away, at 64 ft elevation (2 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Edinburg 17 Nne, TX (used)	64 ft	Jan 21	Dec 23
San Manuel, TX	75 ft	Jan 25	Jan 1
Mccook, TX	220 ft	Jan 22	Dec 19
Edinburg, TX	96 ft	Jan 8	Jan 2

Frost dates near Edinburg

Hargill, TX 78549 · last Jan 21, first Dec 23
Lasara, TX 78561 · last Jan 21, first Dec 26
Edcouch, TX 78538 · last Jan 10, first Dec 27
La Blanca, TX 78558 · last Jan 8, first Jan 2
Elsa, TX 78543 · last Jan 10, first Dec 27
Edinburg, TX 78540 · last Jan 8, first Jan 2
La Villa, TX 78562 · last Jan 10, first Dec 27
Linn, TX 78563 · last Jan 22, first Dec 19

Frequently asked questions

When is the last frost in Edinburg, TX?: For ZIP code 78542, the average last spring frost (32°F) is January 21, based on NOAA 1991-2020 climate normals for the Edinburg 17 Nne, TX weather station. There is a 1-in-10 chance of a frost after February 28.
When is the first frost in Edinburg, TX?: The average first fall frost (32°F) is December 23. There is a 1-in-10 chance of frost by November 23, so tender plants are at risk from that point on.
How long is the growing season in 78542?: 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.