Cottonwood Shores, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.6 °C (low) to 26.3 °C (high). Annual precipitation averages 796.3 Millimeters. Cottonwood Shores is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.7 °C | 16.3 °C | 48.77 mm |
| February | 3.9 °C | 18.2 °C | 50.55 mm |
| March | 8.2 °C | 22.3 °C | 69.09 mm |
| April | 12.2 °C | 26.3 °C | 60.71 mm |
| May | 17.3 °C | 29.8 °C | 99.31 mm |
| June | 21.2 °C | 33.6 °C | 70.36 mm |
| July | 22.6 °C | 35.3 °C | 52.58 mm |
| August | 22.5 °C | 35.9 °C | 49.53 mm |
| September | 19.1 °C | 32.5 °C | 84.84 mm |
| October | 13.1 °C | 27.6 °C | 82.8 mm |
| November | 7.4 °C | 21.4 °C | 70.61 mm |
| December | 2.4 °C | 16.7 °C | 57.15 mm |
| Annual | 12.6 °C | 26.3 °C | 796.3 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |