Tatums, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.3 °F (low) to 74 °F (high). Annual precipitation averages 36.4 Inches. Tatums is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.5 °F | 52.4 °F | 1.62 in. |
| February | 32.3 °F | 56.6 °F | 1.82 in. |
| March | 40.8 °F | 65.3 °F | 2.66 in. |
| April | 48.7 °F | 73.4 °F | 3.53 in. |
| May | 58.9 °F | 80.6 °F | 5.37 in. |
| June | 67.8 °F | 89.0 °F | 4.64 in. |
| July | 71.6 °F | 94.4 °F | 2.61 in. |
| August | 70.5 °F | 94.8 °F | 2.8 in. |
| September | 62.9 °F | 86.8 °F | 3.66 in. |
| October | 50.7 °F | 76.0 °F | 3.55 in. |
| November | 39.7 °F | 64.2 °F | 2.09 in. |
| December | 30.6 °F | 53.9 °F | 2.04 in. |
| Annual | 50.3 °F | 74 °F | 36.39 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |