Arbutus, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.4 °C (low) to 19 °C (high). Annual precipitation averages 1212.9 Millimeters. Arbutus is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.1 °C | 6.2 °C | 85.34 mm |
| February | -2.3 °C | 7.7 °C | 75.95 mm |
| March | 1.5 °C | 12.2 °C | 110.24 mm |
| April | 7.2 °C | 18.9 °C | 94.23 mm |
| May | 12.5 °C | 23.9 °C | 109.22 mm |
| June | 17.6 °C | 28.8 °C | 112.78 mm |
| July | 20.3 °C | 31.2 °C | 112.78 mm |
| August | 19.3 °C | 30.2 °C | 101.35 mm |
| September | 15.6 °C | 26.4 °C | 118.62 mm |
| October | 9 °C | 20 °C | 105.92 mm |
| November | 3.4 °C | 13.8 °C | 84.58 mm |
| December | -0.6 °C | 8.5 °C | 101.85 mm |
| Annual | 8.4 °C | 19 °C | 1212.86 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 |