Tishomingo, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51 °F (low) to 74 °F (high). Annual precipitation averages 42.9 Inches. Tishomingo is located in USDA Plant Hardiness Zone 8a. 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 | 29.7 °F | 52.8 °F | 2.1 in. |
| February | 33.6 °F | 57.2 °F | 2.32 in. |
| March | 41.7 °F | 65.2 °F | 3.63 in. |
| April | 49.5 °F | 73.5 °F | 3.92 in. |
| May | 59.7 °F | 80.4 °F | 5.93 in. |
| June | 68.4 °F | 88.9 °F | 4.85 in. |
| July | 72.2 °F | 94.0 °F | 2.93 in. |
| August | 70.7 °F | 94.3 °F | 2.44 in. |
| September | 63.1 °F | 86.7 °F | 4.37 in. |
| October | 51.0 °F | 76.2 °F | 4.5 in. |
| November | 40.8 °F | 64.7 °F | 2.82 in. |
| December | 31.8 °F | 54.5 °F | 3.06 in. |
| Annual | 51 °F | 74 °F | 42.87 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 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 |