Thousand Oaks, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 11.2 °C (low) to 23 °C (high). Annual precipitation averages 437.1 Millimeters. 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 | 8.6 °C | 18.3 °C | 108.97 mm |
| February | 7.8 °C | 18.6 °C | 120.9 mm |
| March | 8.4 °C | 19.7 °C | 65.02 mm |
| April | 9.3 °C | 21.5 °C | 18.54 mm |
| May | 11.1 °C | 22.4 °C | 10.92 mm |
| June | 12.7 °C | 24.6 °C | 1.27 mm |
| July | 15 °C | 27.4 °C | 1.02 mm |
| August | 15.4 °C | 28.7 °C | 0 mm |
| September | 14.9 °C | 28.1 °C | 2.29 mm |
| October | 13.1 °C | 25.9 °C | 16.26 mm |
| November | 10.4 °C | 22.2 °C | 20.57 mm |
| December | 8.1 °C | 18.4 °C | 71.37 mm |
| Annual | 11.2 °C | 23 °C | 437.13 mm |
| 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 : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |