Texanna, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.1 °C (low) to 22.3 °C (high). Annual precipitation averages 1152.6 Millimeters. Texanna 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 | -2.2 °C | 9.9 °C | 62.48 mm |
| February | -0.2 °C | 12.3 °C | 57.15 mm |
| March | 4.6 °C | 17.3 °C | 98.04 mm |
| April | 9.3 °C | 22.2 °C | 113.03 mm |
| May | 14.9 °C | 26.2 °C | 149.86 mm |
| June | 19.9 °C | 30.9 °C | 120.9 mm |
| July | 22 °C | 33.8 °C | 82.3 mm |
| August | 21.3 °C | 33.8 °C | 86.61 mm |
| September | 16.8 °C | 29.7 °C | 120.14 mm |
| October | 10.3 °C | 23.7 °C | 103.63 mm |
| November | 4.4 °C | 17.1 °C | 88.65 mm |
| December | -0.5 °C | 11.2 °C | 69.85 mm |
| Annual | 10.1 °C | 22.3 °C | 1152.64 mm |
| 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 : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |