Anderson, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 48.4 °F (low) to 76 °F (high). Annual precipitation averages 33.8 Inches. Anderson is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 36.9 °F | 56.9 °F | 6.31 in. |
| February | 39.0 °F | 60.9 °F | 5.29 in. |
| March | 41.7 °F | 65.5 °F | 4.65 in. |
| April | 45.1 °F | 71.5 °F | 2.42 in. |
| May | 52.0 °F | 81.0 °F | 1.77 in. |
| June | 59.4 °F | 90.7 °F | 1.12 in. |
| July | 63.3 °F | 98.2 °F | 0.07 in. |
| August | 61.1 °F | 96.5 °F | 0.17 in. |
| September | 56.4 °F | 91.5 °F | 0.4 in. |
| October | 48.9 °F | 79.1 °F | 1.72 in. |
| November | 40.7 °F | 64.7 °F | 3.51 in. |
| December | 36.6 °F | 56.0 °F | 6.33 in. |
| Annual | 48.4 °F | 76 °F | 33.76 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |