Eastvale, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 51.1 °F (low) to 78.9 °F (high). Annual precipitation averages 10.5 Inches. Eastvale is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 42.5 °F | 68.1 °F | 2.29 in. |
| February | 43.3 °F | 68.3 °F | 2.74 in. |
| March | 45.7 °F | 71.3 °F | 1.68 in. |
| April | 48.3 °F | 74.9 °F | 0.53 in. |
| May | 53.3 °F | 78.7 °F | 0.23 in. |
| June | 57.0 °F | 85.1 °F | 0.05 in. |
| July | 61.5 °F | 91.5 °F | 0.06 in. |
| August | 62.0 °F | 93.3 °F | 0.03 in. |
| September | 59.6 °F | 90.6 °F | 0.1 in. |
| October | 53.4 °F | 82.9 °F | 0.38 in. |
| November | 45.9 °F | 74.7 °F | 0.61 in. |
| December | 41.2 °F | 67.6 °F | 1.76 in. |
| Annual | 51.1 °F | 78.9 °F | 10.46 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 10a : 30°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |