Dawson, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.8 °F (low) to 65.1 °F (high). Annual precipitation averages 39.8 Inches. Dawson is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.7 °F | 40.2 °F | 2.7 in. |
| February | 23.9 °F | 44.0 °F | 2.58 in. |
| March | 30.4 °F | 52.6 °F | 3.54 in. |
| April | 39.4 °F | 66.8 °F | 3.57 in. |
| May | 48.9 °F | 75.5 °F | 4.3 in. |
| June | 57.9 °F | 83.0 °F | 4.18 in. |
| July | 62.2 °F | 87.3 °F | 3.81 in. |
| August | 60.6 °F | 85.9 °F | 3.39 in. |
| September | 53.6 °F | 79.5 °F | 3.54 in. |
| October | 42.3 °F | 67.5 °F | 2.76 in. |
| November | 32.6 °F | 54.6 °F | 2.5 in. |
| December | 26.6 °F | 44.0 °F | 2.95 in. |
| Annual | 41.8 °F | 65.1 °F | 39.82 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |