When to plant in Galveston, TX
USDA Zone 10aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Galveston, Texas — all computed from Galveston's nearest NOAA weather station.
A ~-11-day frost-free window makes Galveston a short-season garden: choose early varieties and start long-season crops indoors well ahead of the last frost. In zone 10a, frost is a minor factor for Galveston — most perennials thrive, and annual vegetables can go out early and stay late.
The average first fall frost in Galveston is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
GALVESTON SCHOLES FLD · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Galveston’s own odds, recorded at GALVESTON SCHOLES FLD.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 2 | Jan 30 | Dec 30 | Dec 1 | Dec 26 | Jan 23 |
| 32°F | Feb 18 | Jan 18 | Dec 21 | Dec 13 | Jan 7 | Feb 7 |
| 28°F | Feb 11 | Jan 9 | Dec 17 | Dec 15 | Jan 8 | Feb 8 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.
Full-year planting calendar
Each bar is the exact window to take a planting action in Galveston, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 33 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Galveston planting FAQ
When is the last spring frost in Galveston, TX?
Plan for the last spring frost in Galveston around January 18 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Galveston, TX?
In Galveston, the first 32°F freeze of fall lands around January 7 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Galveston in?
Galveston is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Galveston?
Galveston has about -11 frost-free days — a short growing season — between the average last spring frost (January 18) and first fall frost (January 7).
When should I plant tomatoes in Galveston?
For Galveston, sow tomatoes indoors about November 23–December 7 and move the seedlings out around January 25, after the last spring frost.
Never miss a window in Galveston
An email when it’s time to start seeds, transplant, and sow — timed to Galveston’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- La Marque · 21 km
- Santa Fe · 26 km
- Texas City · 28 km
- Dickinson · 31 km
- Alvin · 36 km
- League City · 37 km
- Webster · 41 km
- Friendswood · 42 km
Frost dates recorded at GALVESTON SCHOLES FLD, 14 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Galveston, TX — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00012923. Retrieved from https://blissgarden.com/texas/galveston.