Bowling Green, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.7 °C (low) to 18.2 °C (high). Annual precipitation averages 1027.4 Millimeters. 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 | -4.9 °C | 4.5 °C | 64.26 mm |
| February | -4.2 °C | 6.7 °C | 66.04 mm |
| March | -0.7 °C | 11.5 °C | 90.93 mm |
| April | 4.4 °C | 19.1 °C | 89.15 mm |
| May | 9.7 °C | 23.9 °C | 114.81 mm |
| June | 14.7 °C | 28.1 °C | 102.36 mm |
| July | 16.9 °C | 30.5 °C | 90.42 mm |
| August | 16.1 °C | 29.6 °C | 78.23 mm |
| September | 12.2 °C | 26 °C | 101.09 mm |
| October | 5.9 °C | 19.4 °C | 78.23 mm |
| November | 0.7 °C | 12.5 °C | 70.61 mm |
| December | -2.7 °C | 6.7 °C | 81.28 mm |
| Annual | 5.7 °C | 18.2 °C | 1027.41 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |