Tamaha, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.5 °F (low) to 72.5 °F (high). Annual precipitation averages 46.1 Inches. Tamaha 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 | 27.8 °F | 50.0 °F | 2.61 in. |
| February | 31.4 °F | 54.3 °F | 2.42 in. |
| March | 39.6 °F | 63.1 °F | 3.87 in. |
| April | 48.2 °F | 72.3 °F | 4.57 in. |
| May | 58.2 °F | 79.4 °F | 5.8 in. |
| June | 67.4 °F | 88.2 °F | 4.64 in. |
| July | 71.0 °F | 93.1 °F | 3.55 in. |
| August | 69.7 °F | 93.0 °F | 3.33 in. |
| September | 62.0 °F | 86.1 °F | 4.42 in. |
| October | 49.6 °F | 74.8 °F | 4.18 in. |
| November | 39.0 °F | 63.2 °F | 3.64 in. |
| December | 30.3 °F | 51.9 °F | 3.05 in. |
| Annual | 49.5 °F | 72.5 °F | 46.08 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 |