Kosse, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.9 °F (low) to 77.9 °F (high). Annual precipitation averages 40.2 Inches. Kosse is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.3 °F | 59.2 °F | 3.23 in. |
| February | 41.0 °F | 63.1 °F | 2.89 in. |
| March | 47.5 °F | 69.8 °F | 3.64 in. |
| April | 54.8 °F | 77.3 °F | 3.32 in. |
| May | 63.7 °F | 84.0 °F | 4.54 in. |
| June | 70.7 °F | 91.1 °F | 3.6 in. |
| July | 73.4 °F | 95.0 °F | 1.95 in. |
| August | 73.0 °F | 95.8 °F | 2.65 in. |
| September | 66.8 °F | 89.9 °F | 3.26 in. |
| October | 56.5 °F | 80.3 °F | 4.26 in. |
| November | 46.9 °F | 69.0 °F | 3.22 in. |
| December | 39.1 °F | 60.7 °F | 3.62 in. |
| Annual | 55.9 °F | 77.9 °F | 40.18 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |