| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 27o - Cross Timbers Transition |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 73008 - Bethany, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 29 | 38 | 48 | 58 | 66 | 71 | 69 | 61 | 50 | 38 | 29 | 48 |
| Avg Max Temp (°F) | 46 | 53 | 61 | 71 | 79 | 87 | 92 | 91 | 83 | 73 | 59 | 49 | 70 |
| Avg Precip (In.) | 1.3 | 1.64 | 2.98 | 3.1 | 5.5 | 4.58 | 2.68 | 2.61 | 3.8 | 3.52 | 2.25 | 1.84 | 35.79 |