Santa Paula, California has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 10.2 °C (low) to 22.5 °C (high). Annual precipitation averages 449.1 Millimeters. Santa Paula 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. 1 - Jan. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.8 °C | 19.3 °C | 106.68 mm |
| February | 6.9 °C | 19.2 °C | 118.87 mm |
| March | 7.7 °C | 19.9 °C | 75.18 mm |
| April | 8.6 °C | 21.6 °C | 20.32 mm |
| May | 10.7 °C | 22.1 °C | 7.87 mm |
| June | 12.6 °C | 23.6 °C | 1.27 mm |
| July | 14.3 °C | 25.6 °C | 0.76 mm |
| August | 14.4 °C | 26.4 °C | 0.25 mm |
| September | 13.6 °C | 26.1 °C | 2.03 mm |
| October | 11.7 °C | 24.8 °C | 16.76 mm |
| November | 8.5 °C | 22.2 °C | 26.16 mm |
| December | 6.3 °C | 19.2 °C | 72.9 mm |
| Annual | 10.2 °C | 22.5 °C | 449.05 mm |
| Average First Frost Date | Jan. 1 - Jan. 10 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csb - Warm-Summer Mediterranean Climate |