Casa Blanca, Arizona has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 57.3 °F (low) to 86.5 °F (high). Annual precipitation averages 8 Inches. Casa Blanca is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Frost Rare through the first frost around Jan. 11 - Jan. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.6 °F | 67.0 °F | 0.89 in. |
| February | 42.4 °F | 70.7 °F | 0.9 in. |
| March | 47.3 °F | 77.4 °F | 0.93 in. |
| April | 53.2 °F | 84.9 °F | 0.29 in. |
| May | 62.0 °F | 93.9 °F | 0.17 in. |
| June | 70.8 °F | 103.6 °F | 0.05 in. |
| July | 78.5 °F | 105.5 °F | 0.81 in. |
| August | 78.0 °F | 104.1 °F | 1.22 in. |
| September | 71.4 °F | 99.6 °F | 0.74 in. |
| October | 58.4 °F | 89.2 °F | 0.48 in. |
| November | 46.6 °F | 76.3 °F | 0.55 in. |
| December | 38.8 °F | 65.9 °F | 0.96 in. |
| Annual | 57.3 °F | 86.5 °F | 7.99 in. |
| Average First Frost Date | Jan. 11 - Jan. 20 |
| Average Last Frost Date | Frost Rare |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BWh - Hot Desert Climate |