When to plant in Sweetwater, TX
USDA Zone 8aEverything below — frost dates, hardiness zone, and what to plant when in Sweetwater, Texas — is derived from the closest NOAA station with complete climate normals.
Zone 8a means many perennials and even some tender shrubs overwinter in Sweetwater, while your frost dates still decide when annuals go out.
Frost probability
ROSCOE · 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 Sweetwater’s own odds, recorded at ROSCOE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 27 | Apr 8 | Mar 22 | Oct 17 | Oct 30 | Nov 12 |
| 32°F | Apr 17 | Mar 30 | Mar 8 | Oct 26 | Nov 8 | Nov 25 |
| 28°F | Apr 4 | Mar 16 | Feb 25 | Nov 1 | Nov 18 | Dec 4 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Sweetwater, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 43 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.
Sweetwater planting FAQ
When is the last spring frost in Sweetwater, TX?
Plan for the last spring frost in Sweetwater around March 30 (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 Sweetwater, TX?
Expect Sweetwater's first fall frost near November 8 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Sweetwater in?
Sweetwater is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Sweetwater?
There are roughly 223 frost-free days in Sweetwater (a long growing season), running from the average last frost around March 30 to the first fall frost near November 8.
When should I plant tomatoes in Sweetwater?
In Sweetwater, start tomato seeds indoors around February 2–February 16, then transplant seedlings outdoors around April 6 once the danger of frost has passed.
Never miss a window in Sweetwater
An email when it’s time to start seeds, transplant, and sow — timed to Sweetwater’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Snyder · 54 km
- Abilene · 63 km
- Big Spring · 104 km
- San Angelo · 114 km
- Brownwood · 159 km
- Midland · 168 km
- Lubbock · 184 km
- Odessa · 194 km
Frost dates recorded at ROSCOE, 11 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 Sweetwater, TX — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00417743. Retrieved from https://blissgarden.com/texas/sweetwater.