When to plant in Mission, TX
USDA Zone 10aEverything below — frost dates, hardiness zone, and what to plant when in Mission, Texas — is derived from the closest NOAA station with complete climate normals.
With only about -6 frost-free days, Mission has a short season — start heat-lovers indoors early, favor quick-maturing varieties, and use row cover to stretch both ends. Zone 10a is warm enough that Mission can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
Frost probability
MCALLEN MILLER INTL AP · 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 Mission’s own odds, recorded at MCALLEN MILLER INTL AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Feb 22 | Jan 19 | Dec 17 | Nov 30 | Dec 29 | Feb 5 |
| 32°F | Feb 13 | Jan 9 | Dec 17 | Dec 11 | Jan 3 | Feb 9 |
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 Mission, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 13 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.
Mission planting FAQ
When is the last spring frost in Mission, TX?
On average, the last spring frost in Mission 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 Mission, TX?
The first fall frost in Mission typically arrives around January 3 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Mission in?
Mission is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Mission?
There are roughly -6 frost-free days in Mission (a short growing season), running from the average last frost around January 9 to the first fall frost near January 3.
When should I plant tomatoes in Mission?
In Mission, start tomato seeds indoors around November 14–November 28, then transplant seedlings outdoors around January 16 once the danger of frost has passed.
Never miss a window in Mission
An email when it’s time to start seeds, transplant, and sow — timed to Mission’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at MCALLEN MILLER INTL AP, 7 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 Mission, TX — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00012959. Retrieved from https://blissgarden.com/texas/mission.