| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°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: | 40b - Osage Cuestas |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 74426 - Checotah, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 32 | 40 | 49 | 58 | 67 | 71 | 69 | 62 | 51 | 40 | 31 | 50 |
| Avg Max Temp (°F) | 47 | 54 | 63 | 72 | 79 | 87 | 93 | 93 | 84 | 74 | 61 | 51 | 72 |
| Avg Precip (In.) | 1.99 | 2.24 | 3.9 | 4.07 | 5.67 | 4.65 | 2.87 | 2.75 | 5.2 | 4.32 | 4.03 | 3.02 | 44.72 |