When to plant in Oklahoma City, OK
USDA Zone 7bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Oklahoma City, Oklahoma — all computed from Oklahoma City's nearest NOAA weather station.
In zone 7b, Oklahoma City supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
The average last spring frost in Oklahoma City is now 8 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
OKLAHOMA CITY WILL ROGERS 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 Oklahoma City’s own odds, recorded at OKLAHOMA CITY WILL ROGERS AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 30 | Apr 15 | Mar 31 | Oct 12 | Oct 26 | Nov 7 |
| 32°F | Apr 20 | Apr 4 | Mar 16 | Oct 21 | Nov 2 | Nov 17 |
| 28°F | Apr 7 | Mar 21 | Mar 3 | Oct 29 | Nov 11 | Nov 27 |
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 Oklahoma City, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 18 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.
Oklahoma City planting FAQ
When is the last spring frost in Oklahoma City, OK?
On average, the last spring frost in Oklahoma City is around April 4 (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 Oklahoma City, OK?
In Oklahoma City, the first 32°F freeze of fall lands around November 2 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Oklahoma City in?
Oklahoma City 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 Oklahoma City?
Oklahoma City has about 212 frost-free days — a long growing season — between the average last spring frost (April 4) and first fall frost (November 2).
When should I plant tomatoes in Oklahoma City?
For Oklahoma City, sow tomatoes indoors about February 7–February 21 and move the seedlings out around April 11, after the last spring frost.
Never miss a window in Oklahoma City
An email when it’s time to start seeds, transplant, and sow — timed to Oklahoma City’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Del City · 7 km
- Warr Acres · 12 km
- Bethany · 12 km
- Midwest City · 13 km
- Moore · 16 km
- Mustang · 21 km
- Choctaw · 22 km
- Yukon · 24 km
Frost dates recorded at OKLAHOMA CITY WILL ROGERS AP, 12 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 Oklahoma City, OK — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00013967. Retrieved from https://blissgarden.com/oklahoma/oklahoma-city.