When to plant in Okmulgee, OK
USDA Zone 7bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Okmulgee, Oklahoma — all computed from Okmulgee's nearest NOAA weather station.
In zone 7b, Okmulgee supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
Frost probability
OKMULGEE WTR WKS · 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 Okmulgee’s own odds, recorded at OKMULGEE WTR WKS.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 3 | Apr 19 | Mar 31 | Oct 5 | Oct 20 | Nov 2 |
| 32°F | Apr 25 | Apr 8 | Mar 23 | Oct 12 | Oct 28 | Nov 11 |
| 28°F | Apr 15 | Mar 29 | Mar 11 | Oct 22 | Nov 6 | Nov 23 |
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 Okmulgee, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 40 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.
Okmulgee planting FAQ
When is the last spring frost in Okmulgee, OK?
Okmulgee's average last spring frost falls near April 8 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Okmulgee, OK?
In Okmulgee, the first 32°F freeze of fall lands around October 28 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Okmulgee in?
Okmulgee 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 Okmulgee?
Okmulgee has about 203 frost-free days — a moderate growing season — between the average last spring frost (April 8) and first fall frost (October 28).
When should I plant tomatoes in Okmulgee?
For Okmulgee, sow tomatoes indoors about February 11–February 25 and move the seedlings out around April 15, after the last spring frost.
Never miss a window in Okmulgee
An email when it’s time to start seeds, transplant, and sow — timed to Okmulgee’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at OKMULGEE WTR WKS, 6 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 Okmulgee, OK — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00346670. Retrieved from https://blissgarden.com/oklahoma/okmulgee.