Hesperia, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 46.8 °F (low) to 76.1 °F (high). Annual precipitation averages 7.7 Inches. Hesperia 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 33.1 °F | 58.4 °F | 1.5 in. |
| February | 35.7 °F | 60.7 °F | 1.91 in. |
| March | 39.6 °F | 66.6 °F | 1.07 in. |
| April | 43.5 °F | 72.6 °F | 0.44 in. |
| May | 49.8 °F | 80.3 °F | 0.14 in. |
| June | 57.0 °F | 89.5 °F | 0.06 in. |
| July | 63.6 °F | 95.6 °F | 0.19 in. |
| August | 62.9 °F | 95.9 °F | 0.11 in. |
| September | 58.1 °F | 90.6 °F | 0.14 in. |
| October | 48.1 °F | 78.9 °F | 0.47 in. |
| November | 38.1 °F | 66.5 °F | 0.41 in. |
| December | 32.5 °F | 57.3 °F | 1.27 in. |
| Annual | 46.8 °F | 76.1 °F | 7.71 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 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 |