Cleburne, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.5 °C (low) to 25.2 °C (high). Annual precipitation averages 981.5 Millimeters. Cleburne 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 | 1.4 °C | 14.3 °C | 68.07 mm |
| February | 3.6 °C | 16.4 °C | 67.82 mm |
| March | 7.6 °C | 20.4 °C | 91.69 mm |
| April | 11.7 °C | 24.9 °C | 81.53 mm |
| May | 17 °C | 28.8 °C | 117.09 mm |
| June | 21.4 °C | 33.1 °C | 101.35 mm |
| July | 23.1 °C | 35.5 °C | 50.55 mm |
| August | 22.9 °C | 35.7 °C | 72.39 mm |
| September | 18.9 °C | 31.9 °C | 78.49 mm |
| October | 12.9 °C | 26.4 °C | 107.95 mm |
| November | 7.1 °C | 19.7 °C | 74.68 mm |
| December | 2.4 °C | 15 °C | 69.85 mm |
| Annual | 12.5 °C | 25.2 °C | 981.46 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 |