Clifton, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.6 °C (low) to 25.5 °C (high). Annual precipitation averages 925.1 Millimeters. Clifton 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 | 1.7 °C | 14.7 °C | 62.74 mm |
| February | 3.7 °C | 16.9 °C | 63.5 mm |
| March | 7.8 °C | 20.8 °C | 81.79 mm |
| April | 12 °C | 25.2 °C | 81.53 mm |
| May | 17.2 °C | 29.2 °C | 114.05 mm |
| June | 21.3 °C | 33.2 °C | 97.79 mm |
| July | 22.8 °C | 35.6 °C | 46.99 mm |
| August | 22.7 °C | 35.9 °C | 61.72 mm |
| September | 18.9 °C | 32.3 °C | 75.69 mm |
| October | 12.9 °C | 26.7 °C | 101.6 mm |
| November | 7.2 °C | 20.2 °C | 71.37 mm |
| December | 2.7 °C | 15.6 °C | 66.29 mm |
| Annual | 12.6 °C | 25.5 °C | 925.06 mm |
| 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 : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |