Leon, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51 °F (low) to 74.6 °F (high). Annual precipitation averages 36.9 Inches. Leon is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.6 °F | 53.5 °F | 1.75 in. |
| February | 33.4 °F | 57.5 °F | 2.21 in. |
| March | 41.6 °F | 65.8 °F | 3.05 in. |
| April | 49.4 °F | 74.0 °F | 3.34 in. |
| May | 59.3 °F | 81.2 °F | 5.02 in. |
| June | 68.3 °F | 89.5 °F | 4.14 in. |
| July | 71.9 °F | 94.5 °F | 2.52 in. |
| August | 70.9 °F | 95.2 °F | 2.6 in. |
| September | 63.2 °F | 87.4 °F | 3.65 in. |
| October | 51.4 °F | 76.7 °F | 3.83 in. |
| November | 40.7 °F | 65.0 °F | 2.44 in. |
| December | 31.7 °F | 55.0 °F | 2.39 in. |
| Annual | 51 °F | 74.6 °F | 36.94 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |