Oklahoma Frost Dates & Growing Zones by City
Oklahoma City is the only Oklahoma city with frost dates on this site so far. Its typical (50%) last spring frost is Apr 4, and its typical frost-free season is 213 days.
The 2023 USDA hardiness map places them in zone 7b.
Each city's dates come from the nearest NOAA station that passes our quality rules. The methodology explains how we pick it.
| City | Last frost (50%) | First frost (50%) | Season (days, 50%) | Zone 2023 | Confidence | Planting calendar |
|---|---|---|---|---|---|---|
| Oklahoma City frost dates | Apr 4 | Nov 2 | 213 | 7b | High | Oklahoma City planting calendar |
Station match, data and rules: methodology. Long-term odds, not a forecast.