Ojai, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 47.8 °F (low) to 75.9 °F (high). Annual precipitation averages 21.9 Inches. Ojai is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.4 °F | 66.8 °F | 5.24 in. |
| February | 41.1 °F | 66.7 °F | 5.52 in. |
| March | 43.0 °F | 68.8 °F | 3.82 in. |
| April | 45.1 °F | 71.7 °F | 1.07 in. |
| May | 49.1 °F | 75.3 °F | 0.54 in. |
| June | 52.8 °F | 79.6 °F | 0.11 in. |
| July | 56.6 °F | 86.0 °F | 0.04 in. |
| August | 56.7 °F | 88.6 °F | 0.0 in. |
| September | 54.8 °F | 87.2 °F | 0.11 in. |
| October | 50.1 °F | 80.8 °F | 0.99 in. |
| November | 44.0 °F | 73.2 °F | 1.32 in. |
| December | 39.7 °F | 66.4 °F | 3.13 in. |
| Annual | 47.8 °F | 75.9 °F | 21.89 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9b : 25°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |