California, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49 °F (low) to 66.7 °F (high). Annual precipitation averages 45.7 Inches. California is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.5 °F | 45.2 °F | 3.17 in. |
| February | 29.7 °F | 47.9 °F | 2.87 in. |
| March | 36.2 °F | 55.4 °F | 4.21 in. |
| April | 46.2 °F | 66.5 °F | 3.33 in. |
| May | 56.2 °F | 74.5 °F | 3.9 in. |
| June | 65.1 °F | 82.8 °F | 4.21 in. |
| July | 70.0 °F | 86.9 °F | 4.51 in. |
| August | 68.6 °F | 85.2 °F | 4.35 in. |
| September | 62.5 °F | 79.4 °F | 4.28 in. |
| October | 51.2 °F | 68.6 °F | 3.99 in. |
| November | 40.3 °F | 58.3 °F | 3.2 in. |
| December | 33.3 °F | 49.4 °F | 3.69 in. |
| Annual | 49 °F | 66.7 °F | 45.71 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |