Rohrersville, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.8 °F (low) to 64.6 °F (high). Annual precipitation averages 43.1 Inches. Rohrersville is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.1 °F | 41.0 °F | 3.1 in. |
| February | 25.3 °F | 44.7 °F | 2.47 in. |
| March | 32.8 °F | 52.8 °F | 3.67 in. |
| April | 41.9 °F | 64.8 °F | 3.65 in. |
| May | 51.1 °F | 73.6 °F | 4.42 in. |
| June | 60.1 °F | 82.1 °F | 3.92 in. |
| July | 64.3 °F | 86.6 °F | 3.97 in. |
| August | 62.6 °F | 85.0 °F | 3.39 in. |
| September | 55.6 °F | 78.0 °F | 4.29 in. |
| October | 45.0 °F | 66.6 °F | 3.56 in. |
| November | 34.9 °F | 55.2 °F | 3.2 in. |
| December | 27.4 °F | 44.6 °F | 3.43 in. |
| Annual | 43.8 °F | 64.6 °F | 43.07 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 |