Bowling Green, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.2 °F (low) to 64.8 °F (high). Annual precipitation averages 40.5 Inches. Bowling Green 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.1 °F | 40.1 °F | 2.53 in. |
| February | 24.4 °F | 44.0 °F | 2.6 in. |
| March | 30.8 °F | 52.7 °F | 3.58 in. |
| April | 40.0 °F | 66.3 °F | 3.51 in. |
| May | 49.5 °F | 75.0 °F | 4.52 in. |
| June | 58.4 °F | 82.6 °F | 4.03 in. |
| July | 62.5 °F | 86.9 °F | 3.56 in. |
| August | 60.9 °F | 85.3 °F | 3.08 in. |
| September | 54.0 °F | 78.8 °F | 3.98 in. |
| October | 42.7 °F | 67.0 °F | 3.08 in. |
| November | 33.3 °F | 54.5 °F | 2.78 in. |
| December | 27.1 °F | 44.0 °F | 3.2 in. |
| Annual | 42.2 °F | 64.8 °F | 40.45 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |