State frost hub
First and last frost dates in Oklahoma by ZIP code
| ZIP | City | Last frost | First frost | Zone |
|---|---|---|---|---|
| 73102 | Oklahoma City | Apr 5 | Oct 30 | 7b |
| 74103 | Tulsa | Apr 5 | Oct 30 | 7b |
State frost hub
| ZIP | City | Last frost | First frost | Zone |
|---|---|---|---|---|
| 73102 | Oklahoma City | Apr 5 | Oct 30 | 7b |
| 74103 | Tulsa | Apr 5 | Oct 30 | 7b |