Eufaula, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.3 °F (low) to 72.5 °F (high). Annual precipitation averages 45.6 Inches. Eufaula is located in USDA Plant Hardiness Zone 7b. 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 | 28.3 °F | 50.1 °F | 2.45 in. |
| February | 32.0 °F | 54.4 °F | 2.46 in. |
| March | 40.6 °F | 63.4 °F | 3.63 in. |
| April | 49.0 °F | 72.1 °F | 4.31 in. |
| May | 59.1 °F | 79.3 °F | 5.89 in. |
| June | 68.0 °F | 87.9 °F | 4.99 in. |
| July | 71.7 °F | 93.2 °F | 3.65 in. |
| August | 70.4 °F | 93.1 °F | 3.31 in. |
| September | 62.4 °F | 85.8 °F | 4.46 in. |
| October | 50.8 °F | 74.6 °F | 4.27 in. |
| November | 40.3 °F | 63.1 °F | 3.38 in. |
| December | 31.2 °F | 52.4 °F | 2.82 in. |
| Annual | 50.3 °F | 72.5 °F | 45.62 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |