Etowah, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.2 °F (low) to 72.5 °F (high). Annual precipitation averages 38.9 Inches. Etowah 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.1 °F | 50.6 °F | 1.51 in. |
| February | 30.9 °F | 55.1 °F | 1.83 in. |
| March | 39.6 °F | 63.9 °F | 2.89 in. |
| April | 47.8 °F | 72.6 °F | 3.86 in. |
| May | 58.1 °F | 79.6 °F | 5.4 in. |
| June | 66.7 °F | 87.4 °F | 4.74 in. |
| July | 70.9 °F | 93.1 °F | 3.61 in. |
| August | 69.5 °F | 93.0 °F | 3.02 in. |
| September | 61.5 °F | 85.2 °F | 4.02 in. |
| October | 49.8 °F | 74.4 °F | 3.56 in. |
| November | 38.8 °F | 62.6 °F | 2.28 in. |
| December | 30.1 °F | 52.4 °F | 2.17 in. |
| Annual | 49.2 °F | 72.5 °F | 38.89 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| 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 7a : 0°F to 5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |