Franklin, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.5 °F (low) to 78.5 °F (high). Annual precipitation averages 40.9 Inches. Franklin 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 | 38.6 °F | 60.3 °F | 3.57 in. |
| February | 42.4 °F | 64.0 °F | 3.03 in. |
| March | 48.0 °F | 70.9 °F | 3.53 in. |
| April | 55.6 °F | 78.2 °F | 3.05 in. |
| May | 64.5 °F | 84.8 °F | 4.79 in. |
| June | 71.0 °F | 91.1 °F | 3.47 in. |
| July | 73.5 °F | 95.2 °F | 1.78 in. |
| August | 72.7 °F | 96.1 °F | 2.98 in. |
| September | 67.1 °F | 90.0 °F | 3.15 in. |
| October | 57.2 °F | 80.8 °F | 4.4 in. |
| November | 47.4 °F | 69.6 °F | 3.31 in. |
| December | 40.2 °F | 61.5 °F | 3.85 in. |
| Annual | 56.5 °F | 78.5 °F | 40.91 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 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 |