Florence, Arizona has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 13.8 °C (low) to 29.9 °C (high). Annual precipitation averages 229.4 Millimeters. Florence is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.4 °C | 19.3 °C | 29.46 mm |
| February | 5.7 °C | 21.2 °C | 28.96 mm |
| March | 8.1 °C | 24.9 °C | 26.92 mm |
| April | 11.3 °C | 29 °C | 8.13 mm |
| May | 16 °C | 34.2 °C | 3.81 mm |
| June | 21.1 °C | 39.3 °C | 1.27 mm |
| July | 25.3 °C | 40.2 °C | 24.89 mm |
| August | 25.1 °C | 39.3 °C | 32.26 mm |
| September | 21.7 °C | 37 °C | 19.3 mm |
| October | 14.8 °C | 31.4 °C | 13.97 mm |
| November | 8.2 °C | 24.5 °C | 12.45 mm |
| December | 4.1 °C | 18.7 °C | 27.94 mm |
| Annual | 13.8 °C | 29.9 °C | 229.36 mm |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |