When to plant in Ada, OK
USDA Zone 7bAda, Oklahoma frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
In zone 7b, Ada supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
ADA · 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 Ada’s own odds, recorded at ADA.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 27 | Apr 12 | Mar 27 | Oct 11 | Oct 26 | Nov 9 |
| 32°F | Apr 18 | Apr 2 | Mar 14 | Oct 20 | Nov 4 | Nov 21 |
| 28°F | Apr 7 | Mar 19 | Feb 28 | Oct 28 | Nov 13 | Dec 1 |
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 Ada, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 24 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.
Ada planting FAQ
When is the last spring frost in Ada, OK?
On average, the last spring frost in Ada is around April 2 (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 Ada, OK?
Expect Ada's first fall frost near November 4 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Ada in?
Ada is in USDA hardiness zone 7b. In zone 7b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Ada?
Ada has about 216 frost-free days — a long growing season — between the average last spring frost (April 2) and first fall frost (November 4).
When should I plant tomatoes in Ada?
For Ada, sow tomatoes indoors about February 5–February 19 and move the seedlings out around April 9, after the last spring frost.
Never miss a window in Ada
An email when it’s time to start seeds, transplant, and sow — timed to Ada’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at ADA, 3 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 Ada, OK — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00340017. Retrieved from https://blissgarden.com/oklahoma/ada.