Bryans Road, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.6 °C (low) to 19.6 °C (high). Annual precipitation averages 1148.1 Millimeters. Bryans Road 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.8 °C | 6.8 °C | 77.47 mm |
| February | -1.8 °C | 8.8 °C | 68.83 mm |
| March | 1.8 °C | 13.5 °C | 97.54 mm |
| April | 7.3 °C | 20.1 °C | 85.09 mm |
| May | 12.7 °C | 24.4 °C | 108.46 mm |
| June | 17.7 °C | 28.9 °C | 112.52 mm |
| July | 20.4 °C | 31.3 °C | 113.79 mm |
| August | 19.6 °C | 30.3 °C | 98.04 mm |
| September | 15.9 °C | 26.7 °C | 112.52 mm |
| October | 9.2 °C | 20.6 °C | 98.3 mm |
| November | 3.3 °C | 14.4 °C | 81.28 mm |
| December | -0.4 °C | 9.1 °C | 94.23 mm |
| Annual | 8.6 °C | 19.6 °C | 1148.07 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |