California, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.4 °C (low) to 19.3 °C (high). Annual precipitation averages 1161 Millimeters. 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 | -1.9 °C | 7.3 °C | 80.52 mm |
| February | -1.3 °C | 8.8 °C | 72.9 mm |
| March | 2.3 °C | 13 °C | 106.93 mm |
| April | 7.9 °C | 19.2 °C | 84.58 mm |
| May | 13.4 °C | 23.6 °C | 99.06 mm |
| June | 18.4 °C | 28.2 °C | 106.93 mm |
| July | 21.1 °C | 30.5 °C | 114.55 mm |
| August | 20.3 °C | 29.6 °C | 110.49 mm |
| September | 16.9 °C | 26.3 °C | 108.71 mm |
| October | 10.7 °C | 20.3 °C | 101.35 mm |
| November | 4.6 °C | 14.6 °C | 81.28 mm |
| December | 0.7 °C | 9.7 °C | 93.73 mm |
| Annual | 9.4 °C | 19.3 °C | 1161.03 mm |
| 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 : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |