Smartsville, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 9.9 °C (low) to 23.4 °C (high). Annual precipitation averages 820.4 Millimeters. Smartsville 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 | 4.2 °C | 13.3 °C | 147.57 mm |
| February | 5.2 °C | 15.9 °C | 141.48 mm |
| March | 6.7 °C | 18.3 °C | 133.1 mm |
| April | 8 °C | 20.8 °C | 63.5 mm |
| May | 11.2 °C | 25.8 °C | 35.05 mm |
| June | 14.3 °C | 30.7 °C | 10.67 mm |
| July | 16.9 °C | 34.4 °C | 0.25 mm |
| August | 16.4 °C | 33.8 °C | 2.03 mm |
| September | 14.7 °C | 31.3 °C | 5.08 mm |
| October | 10.8 °C | 25.7 °C | 41.15 mm |
| November | 6.7 °C | 18 °C | 82.3 mm |
| December | 3.9 °C | 13.2 °C | 158.24 mm |
| Annual | 9.9 °C | 23.4 °C | 820.42 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |