FrostDateByZip

Frost dates for 78585Salineno, TX

The average last spring frost in Salineno is January 9 and the average first fall frost is January 1, giving a typical growing season of about 363 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Jan 9

Safer after Feb 21 (1-in-10 risk)

Average first fall frost
Jan 1

Possible by Dec 8 (1-in-10 risk)

Growing season
363 days

First frost typically in 59 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 27 · Jan 30 · Mar 5Nov 27 · Dec 18 · Jan 14324 days92%
Frost / freeze (32°F)Dec 17 · Jan 9 · Feb 21Dec 8 · Jan 1 · Feb 4363 days55%
Hard freeze (28°F)Dec 14 · Jan 3 · Feb 6Dec 14 · Jan 2 · Feb 2365 days19%

Where these dates come from

ZIP code 78585 is matched to the NOAA station Falcon Dam, TX, 5.3 km away, at 320 ft elevation (100 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Falcon Dam, TX (used)320 ftJan 9Jan 1
Rio Grande City, TX172 ftJan 31Dec 17
Zapata 1 S, TX320 ftJan 19Dec 22
La Joya, TX213 ftJan 23Dec 28

Frost dates near Salineno

Frequently asked questions

When is the last frost in Salineno, TX?
For ZIP code 78585, the average last spring frost (32°F) is January 9, based on NOAA 1991-2020 climate normals for the Falcon Dam, TX weather station. There is a 1-in-10 chance of a frost after February 21.
When is the first frost in Salineno, TX?
The average first fall frost (32°F) is January 1. There is a 1-in-10 chance of frost by December 8, so tender plants are at risk from that point on.
How long is the growing season in 78585?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 363 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.