When to plant in Brownsville, TX
USDA Zone 10aBrownsville, Texas frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
With only about -5 frost-free days, Brownsville has a short season — start heat-lovers indoors early, favor quick-maturing varieties, and use row cover to stretch both ends. In zone 10a, frost is a minor factor for Brownsville — most perennials thrive, and annual vegetables can go out early and stay late.
Frost probability
WFO BROWNSVILLE · 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 Brownsville’s own odds, recorded at WFO BROWNSVILLE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 7 | Jan 25 | Dec 16 | Nov 30 | Dec 30 | Feb 7 |
| 32°F | Mar 1 | Jan 9 | Dec 12 | Dec 9 | Jan 4 | Feb 18 |
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 Brownsville, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 21 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.
Brownsville planting FAQ
When is the last spring frost in Brownsville, TX?
On average, the last spring frost in Brownsville is around January 9 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Brownsville, TX?
Expect Brownsville's first fall frost near January 4 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Brownsville in?
Brownsville is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Brownsville?
Brownsville has about -5 frost-free days — a short growing season — between the average last spring frost (January 9) and first fall frost (January 4).
When should I plant tomatoes in Brownsville?
For Brownsville, sow tomatoes indoors about November 14–November 28 and move the seedlings out around January 16, after the last spring frost.
Never miss a window in Brownsville
An email when it’s time to start seeds, transplant, and sow — timed to Brownsville’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- San Benito · 23 km
- Harlingen · 31 km
- Mercedes · 47 km
- Weslaco · 54 km
- Donna · 59 km
- Raymondville · 62 km
- Alamo · 67 km
- San Juan · 71 km
Frost dates recorded at WFO BROWNSVILLE, 10 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 Brownsville, TX — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00419649. Retrieved from https://blissgarden.com/texas/brownsville.