FrostDateByZip

Frost dates for 78569Lyford, TX

The average last spring frost in Lyford is January 21 and the average first fall frost is December 26, giving a typical growing season of about 340 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Jan 21

Safer after Feb 27 (1-in-10 risk)

Average first fall frost
Dec 26

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

Growing season
340 days

First frost typically in 61 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 3 · Feb 15 · Mar 16Nov 18 · Dec 8 · Jan 5301 days98%
Frost / freeze (32°F)Dec 18 · Jan 21 · Feb 27Dec 1 · Dec 26 · Feb 1340 days77%
Hard freeze (28°F)Dec 15 · Jan 7 · Feb 8Dec 9 · Jan 2 · Feb 1365 days36%

Where these dates come from

ZIP code 78569 is matched to the NOAA station Raymondville, TX, 6.2 km away, at 31 ft elevation (2 ft lower than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Raymondville, TX (used)31 ftJan 21Dec 26
Santa Rosa 3 Wnw, TX50 ftJan 10Dec 27
Harlingen Rio Grande Ap, TX34 ftJan 8Dec 29
Harlingen, TX38 ftJan 9Jan 3

Frost dates near Lyford

Frequently asked questions

When is the last frost in Lyford, TX?
For ZIP code 78569, the average last spring frost (32°F) is January 21, based on NOAA 1991-2020 climate normals for the Raymondville, TX weather station. There is a 1-in-10 chance of a frost after February 27.
When is the first frost in Lyford, TX?
The average first fall frost (32°F) is December 26. 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 78569?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 340 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.