Solomons, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.1 °C (low) to 19 °C (high). Annual precipitation averages 1167.9 Millimeters. Solomons is located in USDA Plant Hardiness Zone 8a. 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 | -1.3 °C | 7.1 °C | 80.52 mm |
| February | -0.6 °C | 8.2 °C | 73.66 mm |
| March | 3 °C | 12 °C | 109.47 mm |
| April | 8.6 °C | 18.4 °C | 84.07 mm |
| May | 14.1 °C | 23.3 °C | 98.3 mm |
| June | 19 °C | 28.1 °C | 108.46 mm |
| July | 21.7 °C | 30.5 °C | 114.81 mm |
| August | 21 °C | 29.4 °C | 112.78 mm |
| September | 17.6 °C | 26.3 °C | 109.22 mm |
| October | 11.2 °C | 20.4 °C | 101.85 mm |
| November | 5.2 °C | 14.3 °C | 80.26 mm |
| December | 1.4 °C | 9.7 °C | 94.49 mm |
| Annual | 10.1 °C | 19 °C | 1167.89 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 8a : -12.2°C to -9.4°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 |