Topawa, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 54 °F (low) to 84.7 °F (high). Annual precipitation averages 13.4 Inches. Topawa is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.6 °F | 67.0 °F | 0.97 in. |
| February | 39.8 °F | 69.7 °F | 0.86 in. |
| March | 44.9 °F | 75.7 °F | 0.84 in. |
| April | 49.3 °F | 82.8 °F | 0.26 in. |
| May | 57.5 °F | 91.7 °F | 0.28 in. |
| June | 67.2 °F | 101.3 °F | 0.28 in. |
| July | 73.8 °F | 101.6 °F | 2.87 in. |
| August | 72.8 °F | 99.5 °F | 2.95 in. |
| September | 67.3 °F | 96.4 °F | 1.43 in. |
| October | 55.8 °F | 87.9 °F | 0.7 in. |
| November | 44.5 °F | 76.1 °F | 0.57 in. |
| December | 37.2 °F | 66.3 °F | 1.42 in. |
| Annual | 54 °F | 84.7 °F | 13.43 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BWh - Hot Desert Climate |