Eldon, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49 °F (low) to 71.2 °F (high). Annual precipitation averages 48.4 Inches. Eldon 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 Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.2 °F | 48.9 °F | 2.58 in. |
| February | 30.7 °F | 53.3 °F | 2.5 in. |
| March | 39.1 °F | 62.2 °F | 3.95 in. |
| April | 47.6 °F | 71.4 °F | 4.71 in. |
| May | 57.4 °F | 78.4 °F | 6.28 in. |
| June | 66.3 °F | 86.4 °F | 5.13 in. |
| July | 70.3 °F | 91.7 °F | 4.02 in. |
| August | 68.9 °F | 91.7 °F | 3.55 in. |
| September | 61.2 °F | 84.3 °F | 4.57 in. |
| October | 49.6 °F | 73.1 °F | 4.42 in. |
| November | 38.9 °F | 61.6 °F | 3.75 in. |
| December | 30.3 °F | 51.0 °F | 2.97 in. |
| Annual | 49 °F | 71.2 °F | 48.43 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 |