Santa Clarita, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 10.8 °C (low) to 25.3 °C (high). Annual precipitation averages 403.6 Millimeters. Santa Clarita 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 | 18.5 °C | 88.14 mm |
| February | 6.7 °C | 18.8 °C | 121.16 mm |
| March | 7.7 °C | 20.9 °C | 60.45 mm |
| April | 8.9 °C | 23.1 °C | 19.3 mm |
| May | 11.1 °C | 25.7 °C | 9.4 mm |
| June | 13.3 °C | 29.3 °C | 0.76 mm |
| July | 15.9 °C | 33.2 °C | 1.27 mm |
| August | 16.2 °C | 34 °C | 0.25 mm |
| September | 15 °C | 32.2 °C | 2.03 mm |
| October | 12.4 °C | 27.5 °C | 14.73 mm |
| November | 8.9 °C | 22.6 °C | 18.8 mm |
| December | 6.6 °C | 18.2 °C | 67.31 mm |
| Annual | 10.8 °C | 25.3 °C | 403.6 mm |
| Average First Frost Date | Jan. 1 - Jan. 10 |
| 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 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |