| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F 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: | 29a - Cross Timbers |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 74859 - Okemah, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 29 | 34 | 42 | 51 | 60 | 68 | 72 | 70 | 63 | 53 | 41 | 32 | 51 |
| Avg Max Temp (°F) | 48 | 55 | 64 | 73 | 80 | 88 | 93 | 94 | 85 | 75 | 61 | 51 | 72 |
| Avg Precip (In.) | 1.7 | 2.11 | 3.55 | 4.04 | 5.68 | 4.74 | 2.95 | 2.5 | 4.86 | 4.04 | 3.57 | 2.49 | 42.23 |