Franklin, Arizona has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 45.4 °F (low) to 79.9 °F (high). Annual precipitation averages 10.6 Inches. Franklin is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.7 °F | 60.2 °F | 0.86 in. |
| February | 31.1 °F | 64.8 °F | 0.84 in. |
| March | 35.8 °F | 71.7 °F | 0.55 in. |
| April | 41.3 °F | 80.0 °F | 0.17 in. |
| May | 49.7 °F | 88.7 °F | 0.28 in. |
| June | 59.4 °F | 98.0 °F | 0.28 in. |
| July | 66.7 °F | 97.8 °F | 1.81 in. |
| August | 65.8 °F | 95.4 °F | 2.04 in. |
| September | 58.9 °F | 91.0 °F | 1.27 in. |
| October | 45.8 °F | 82.2 °F | 0.72 in. |
| November | 34.4 °F | 69.4 °F | 0.65 in. |
| December | 28.0 °F | 59.5 °F | 1.1 in. |
| Annual | 45.4 °F | 79.9 °F | 10.57 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |