Rancho Mirage, California has a Hot Desert Climate climate (Köppen classification: BWh). Average annual temperatures range from 59 °F (low) to 87 °F (high). Annual precipitation averages 3.8 Inches. Rancho Mirage is located in USDA Plant Hardiness Zone 10a. 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 | 43.7 °F | 69.8 °F | 1.03 in. |
| February | 46.7 °F | 72.5 °F | 0.9 in. |
| March | 51.9 °F | 78.5 °F | 0.53 in. |
| April | 56.1 °F | 84.8 °F | 0.07 in. |
| May | 62.8 °F | 92.0 °F | 0.02 in. |
| June | 69.9 °F | 100.2 °F | 0.01 in. |
| July | 76.5 °F | 104.7 °F | 0.1 in. |
| August | 76.9 °F | 104.9 °F | 0.14 in. |
| September | 71.3 °F | 99.6 °F | 0.16 in. |
| October | 60.8 °F | 89.8 °F | 0.12 in. |
| November | 49.5 °F | 78.1 °F | 0.18 in. |
| December | 42.2 °F | 68.5 °F | 0.52 in. |
| Annual | 59 °F | 87 °F | 3.78 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BWh - Hot Desert Climate |