Thousand Oaks, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 52.2 °F (low) to 73.4 °F (high). Annual precipitation averages 17.2 Inches. Thousand Oaks is located in USDA Plant Hardiness Zone 10a. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Jan. 11 - Jan. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 47.5 °F | 65.0 °F | 4.29 in. |
| February | 46.1 °F | 65.4 °F | 4.76 in. |
| March | 47.2 °F | 67.5 °F | 2.56 in. |
| April | 48.8 °F | 70.7 °F | 0.73 in. |
| May | 51.9 °F | 72.4 °F | 0.43 in. |
| June | 54.9 °F | 76.2 °F | 0.05 in. |
| July | 59.0 °F | 81.4 °F | 0.04 in. |
| August | 59.8 °F | 83.7 °F | 0.0 in. |
| September | 58.9 °F | 82.5 °F | 0.09 in. |
| October | 55.5 °F | 78.7 °F | 0.64 in. |
| November | 50.7 °F | 72.0 °F | 0.81 in. |
| December | 46.6 °F | 65.1 °F | 2.81 in. |
| Annual | 52.2 °F | 73.4 °F | 17.21 in. |
| Average First Frost Date | Jan. 11 - Jan. 20 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : 30°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 10a : 30°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |