FrostDateByZip

Frost dates for 78538Edcouch, TX

The average last spring frost in Edcouch is January 10 and the average first fall frost is December 27, giving a typical growing season of about 355 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Jan 10

Safer after Feb 24 (1-in-10 risk)

Average first fall frost
Dec 27

Possible by Dec 3 (1-in-10 risk)

Growing season
355 days

First frost typically in 57 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)Dec 28 · Feb 3 · Mar 8Nov 22 · Dec 12 · Jan 12316 days95%
Frost / freeze (32°F)Dec 13 · Jan 10 · Feb 24Dec 3 · Dec 27 · Feb 1355 days63%
Hard freeze (28°F)Dec 11 · Jan 1 · Feb 1Dec 8 · Dec 29 · Jan 24365 days23%

Where these dates come from

ZIP code 78538 is matched to the NOAA station Santa Rosa 3 Wnw, TX, 11.7 km away, at 50 ft elevation (12 ft lower than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Santa Rosa 3 Wnw, TX (used)50 ftJan 10Dec 27
Weslaco, TX75 ftJan 8Dec 31
Edinburg, TX96 ftJan 8Jan 2
Raymondville, TX31 ftJan 21Dec 26

Frost dates near Edcouch

Frequently asked questions

When is the last frost in Edcouch, TX?
For ZIP code 78538, the average last spring frost (32°F) is January 10, based on NOAA 1991-2020 climate normals for the Santa Rosa 3 Wnw, TX weather station. There is a 1-in-10 chance of a frost after February 24.
When is the first frost in Edcouch, TX?
The average first fall frost (32°F) is December 27. There is a 1-in-10 chance of frost by December 3, so tender plants are at risk from that point on.
How long is the growing season in 78538?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 355 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.