Bourneville, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.9 °C (low) to 17.7 °C (high). Annual precipitation averages 1091.7 Millimeters. Bourneville is located in USDA Plant Hardiness Zone 6b. 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 | -5.7 °C | 3.7 °C | 80.52 mm |
| February | -4.7 °C | 5.6 °C | 81.28 mm |
| March | -0.6 °C | 11 °C | 101.35 mm |
| April | 5.1 °C | 18.2 °C | 104.9 mm |
| May | 11.1 °C | 23.4 °C | 116.08 mm |
| June | 15.9 °C | 28 °C | 112.27 mm |
| July | 17.7 °C | 29.4 °C | 99.31 mm |
| August | 16.4 °C | 29.1 °C | 83.06 mm |
| September | 12.3 °C | 26 °C | 77.72 mm |
| October | 6 °C | 19.3 °C | 78.49 mm |
| November | 0.5 °C | 12 °C | 74.93 mm |
| December | -2.8 °C | 6.1 °C | 81.79 mm |
| Annual | 5.9 °C | 17.7 °C | 1091.7 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 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |