Snelling, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 9.5 °C (low) to 24 °C (high). Annual precipitation averages 342.9 Millimeters. Snelling is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.5 °C | 12.9 °C | 70.1 mm |
| February | 4.7 °C | 16.1 °C | 59.69 mm |
| March | 6.3 °C | 19.2 °C | 55.37 mm |
| April | 8 °C | 22.3 °C | 30.99 mm |
| May | 11.1 °C | 27.2 °C | 13.72 mm |
| June | 14.1 °C | 31.8 °C | 3.3 mm |
| July | 16.6 °C | 34.8 °C | 1.52 mm |
| August | 16.1 °C | 34.2 °C | 0.51 mm |
| September | 14 °C | 31.8 °C | 1.52 mm |
| October | 10.3 °C | 26.2 °C | 16.76 mm |
| November | 5.8 °C | 18.6 °C | 27.69 mm |
| December | 3 °C | 13.2 °C | 61.72 mm |
| Annual | 9.5 °C | 24 °C | 342.89 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 10-20 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 |