Artesia, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 55.3 °F (low) to 74.6 °F (high). Annual precipitation averages 12.9 Inches. Artesia is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 46.7 °F | 67.4 °F | 3.14 in. |
| February | 48.1 °F | 67.3 °F | 3.46 in. |
| March | 50.8 °F | 68.3 °F | 1.89 in. |
| April | 53.0 °F | 72.2 °F | 0.61 in. |
| May | 57.3 °F | 74.1 °F | 0.25 in. |
| June | 60.7 °F | 77.4 °F | 0.07 in. |
| July | 64.0 °F | 82.4 °F | 0.05 in. |
| August | 64.6 °F | 84.4 °F | 0.01 in. |
| September | 63.1 °F | 83.5 °F | 0.12 in. |
| October | 58.3 °F | 79.2 °F | 0.45 in. |
| November | 51.4 °F | 72.4 °F | 0.71 in. |
| December | 46.1 °F | 67.1 °F | 2.1 in. |
| Annual | 55.3 °F | 74.6 °F | 12.86 in. |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 10b : 35°F to 30°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |