Lucerne Valley, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 47.4 °F (low) to 79.1 °F (high). Annual precipitation averages 4.4 Inches. Lucerne Valley is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.1 °F | 60.0 °F | 0.75 in. |
| February | 34.2 °F | 62.8 °F | 0.77 in. |
| March | 39.6 °F | 68.7 °F | 0.55 in. |
| April | 44.7 °F | 75.8 °F | 0.19 in. |
| May | 52.2 °F | 84.8 °F | 0.07 in. |
| June | 59.8 °F | 95.0 °F | 0.03 in. |
| July | 66.1 °F | 100.7 °F | 0.51 in. |
| August | 64.8 °F | 99.6 °F | 0.24 in. |
| September | 58.6 °F | 92.7 °F | 0.15 in. |
| October | 47.9 °F | 81.5 °F | 0.24 in. |
| November | 37.0 °F | 68.3 °F | 0.3 in. |
| December | 31.5 °F | 58.9 °F | 0.62 in. |
| Annual | 47.4 °F | 79.1 °F | 4.42 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |