Belfonte, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.5 °F (low) to 71.5 °F (high). Annual precipitation averages 49 Inches. Belfonte is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.2 °F | 49.5 °F | 2.96 in. |
| February | 31.7 °F | 54.0 °F | 2.66 in. |
| March | 39.9 °F | 62.6 °F | 4.32 in. |
| April | 48.1 °F | 71.4 °F | 4.87 in. |
| May | 57.7 °F | 78.3 °F | 5.88 in. |
| June | 66.4 °F | 86.7 °F | 4.72 in. |
| July | 70.2 °F | 91.8 °F | 3.71 in. |
| August | 69.0 °F | 91.7 °F | 3.78 in. |
| September | 61.7 °F | 84.7 °F | 4.3 in. |
| October | 49.9 °F | 73.5 °F | 4.28 in. |
| November | 39.5 °F | 62.1 °F | 4.09 in. |
| December | 31.1 °F | 51.7 °F | 3.42 in. |
| Annual | 49.5 °F | 71.5 °F | 48.99 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |