When is the last frost in Houston, TX?

For ZIP code 77074, the average last spring frost (32°F) is January 30, based on NOAA 1991-2020 climate normals for the Houston Hobby Ap, TX weather station. There is a 1-in-10 chance of a frost after March 1.

When is the first frost in Houston, TX?

The average first fall frost (32°F) is December 28. There is a 1-in-10 chance of frost by November 27, so tender plants are at risk from that point on.

How long is the growing season in 77074?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 330 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 77074Houston, TX

The average last spring frost in Houston is January 30 and the average first fall frost is December 28, giving a typical growing season of about 330 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Jan 30
Average first fall frost: Dec 28
Growing season: 330 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 20 · Feb 17 · Mar 12	Nov 15 · Dec 4 · Jan 3	293 days	100%
Frost / freeze (32°F)	Dec 29 · Jan 30 · Mar 1	Nov 27 · Dec 28 · Jan 27	330 days	86%
Hard freeze (28°F)	Dec 22 · Jan 17 · Feb 17	Dec 12 · Jan 8 · Feb 4	365 days	47%

Where these dates come from

ZIP code 77074 is matched to the NOAA station Houston Hobby Ap, TX, 22.8 km away, at 44 ft elevation (18 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Houston Hobby Ap, TX (used)	44 ft	Jan 30	Dec 28
Houston Sugarland Mem, TX	82 ft	Feb 2	Dec 11
Sugar Land, TX	84 ft	Feb 9	Dec 13
Houston-Port, TX	19 ft	Feb 2	Dec 25

Frost dates near Houston

Houston, TX 77036 · last Feb 15, first Dec 6
Bellaire, TX 77401 · last Jan 30, first Dec 28
Alief, TX 77411 · last Feb 15, first Dec 6
Stafford, TX 77477 · last Feb 15, first Dec 6
Missouri City, TX 77489 · last Feb 15, first Dec 6
Sugar Land, TX 77478 · last Feb 15, first Dec 6
North Houston, TX 77315 · last Feb 13, first Dec 9
Fresno, TX 77545 · last Feb 15, first Dec 6

Frequently asked questions

When is the last frost in Houston, TX?: For ZIP code 77074, the average last spring frost (32°F) is January 30, based on NOAA 1991-2020 climate normals for the Houston Hobby Ap, TX weather station. There is a 1-in-10 chance of a frost after March 1.
When is the first frost in Houston, TX?: The average first fall frost (32°F) is December 28. There is a 1-in-10 chance of frost by November 27, so tender plants are at risk from that point on.
How long is the growing season in 77074?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 330 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.