When is the last frost in Houston, TX?

For ZIP code 77094, the average last spring frost (32°F) is February 9, based on NOAA 1991-2020 climate normals for the Sugar Land, TX weather station. There is a 1-in-10 chance of a frost after March 11.

When is the first frost in Houston, TX?

The average first fall frost (32°F) is December 13. There is a 1-in-10 chance of frost by November 19, so tender plants are at risk from that point on.

How long is the growing season in 77094?

In half of years, the frost-free season (between the last and first 32°F frost) is at least 305 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 77094Houston, TX

The average last spring frost in Houston is February 9 and the average first fall frost is December 13, giving a typical growing season of about 305 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost: Feb 9
Average first fall frost: Dec 13
Growing season: 305 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)	Feb 2 · Mar 2 · Mar 25	Nov 9 · Nov 29 · Dec 20	272 days	100%
Frost / freeze (32°F)	Jan 13 · Feb 9 · Mar 11	Nov 19 · Dec 13 · Jan 13	305 days	98%
Hard freeze (28°F)	Dec 26 · Jan 28 · Feb 28	Nov 30 · Jan 1 · Feb 2	337 days	78%

Where these dates come from

ZIP code 77094 is matched to the NOAA station Sugar Land, TX, 17.3 km away, at 84 ft elevation (21 ft lower than the ZIP code's center). Nearby stations for comparison:

Station	Elevation	Avg last frost	Avg first frost
Sugar Land, TX (used)	84 ft	Feb 9	Dec 13
Houston Sugarland Mem, TX	82 ft	Feb 2	Dec 11
Thompsons 3 Wsw, TX	70 ft	Feb 15	Dec 6
Houston Hooks Mem Ap, TX	152 ft	Feb 19	Dec 3

Frost dates near Houston

Barker, TX 77413 · last Feb 9, first Dec 13
Katy, TX 77450 · last Feb 9, first Dec 13
Houston, TX 77084 · last Feb 19, first Dec 3
Richmond, TX 77407 · last Feb 15, first Dec 6
Cypress, TX 77433 · last Feb 19, first Dec 3
Alief, TX 77411 · last Feb 15, first Dec 6
Sugar Land, TX 77498 · last Feb 2, first Dec 11
Fulshear, TX 77441 · last Feb 15, first Dec 6

Frequently asked questions

When is the last frost in Houston, TX?: For ZIP code 77094, the average last spring frost (32°F) is February 9, based on NOAA 1991-2020 climate normals for the Sugar Land, TX weather station. There is a 1-in-10 chance of a frost after March 11.
When is the first frost in Houston, TX?: The average first fall frost (32°F) is December 13. There is a 1-in-10 chance of frost by November 19, so tender plants are at risk from that point on.
How long is the growing season in 77094?: In half of years, the frost-free season (between the last and first 32°F frost) is at least 305 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.