Colorado City, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.8 °C (low) to 25.5 °C (high). Annual precipitation averages 522.5 Millimeters. Colorado City 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.7 °C | 14.5 °C | 20.32 mm |
| February | 1.2 °C | 17 °C | 24.38 mm |
| March | 5.7 °C | 21.5 °C | 36.07 mm |
| April | 10.3 °C | 26.4 °C | 40.13 mm |
| May | 15.8 °C | 30.7 °C | 59.18 mm |
| June | 20.1 °C | 33.8 °C | 69.34 mm |
| July | 22 °C | 35.5 °C | 41.91 mm |
| August | 21.5 °C | 35 °C | 50.55 mm |
| September | 17.4 °C | 30.9 °C | 78.74 mm |
| October | 11.3 °C | 26.1 °C | 48.77 mm |
| November | 4.6 °C | 19.6 °C | 29.72 mm |
| December | 0.1 °C | 15.1 °C | 23.37 mm |
| Annual | 10.8 °C | 25.5 °C | 522.48 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 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |