Tishomingo, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.6 °C (low) to 23.4 °C (high). Annual precipitation averages 1088.9 Millimeters. 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 | -1.3 °C | 11.6 °C | 53.34 mm |
| February | 0.9 °C | 14 °C | 58.93 mm |
| March | 5.4 °C | 18.4 °C | 92.2 mm |
| April | 9.7 °C | 23.1 °C | 99.57 mm |
| May | 15.4 °C | 26.9 °C | 150.62 mm |
| June | 20.2 °C | 31.6 °C | 123.19 mm |
| July | 22.3 °C | 34.4 °C | 74.42 mm |
| August | 21.5 °C | 34.6 °C | 61.98 mm |
| September | 17.3 °C | 30.4 °C | 111 mm |
| October | 10.6 °C | 24.6 °C | 114.3 mm |
| November | 4.9 °C | 18.2 °C | 71.63 mm |
| December | -0.1 °C | 12.5 °C | 77.72 mm |
| Annual | 10.6 °C | 23.4 °C | 1088.9 mm |
| 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 : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |