Deersville, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 5.4 °C (low) to 16.1 °C (high). Annual precipitation averages 1088.4 Millimeters. Deersville is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.6 °C | 2.1 °C | 81.28 mm |
| February | -5.7 °C | 3.9 °C | 59.69 mm |
| March | -1.4 °C | 9.3 °C | 87.12 mm |
| April | 4.2 °C | 16.6 °C | 96.52 mm |
| May | 10.1 °C | 21.9 °C | 107.95 mm |
| June | 15 °C | 26.1 °C | 127.76 mm |
| July | 17 °C | 28.2 °C | 105.16 mm |
| August | 16.1 °C | 27.6 °C | 103.63 mm |
| September | 12.2 °C | 24.3 °C | 87.88 mm |
| October | 6.1 °C | 17.6 °C | 78.23 mm |
| November | 0.7 °C | 10.7 °C | 74.17 mm |
| December | -3.5 °C | 4.7 °C | 78.99 mm |
| Annual | 5.4 °C | 16.1 °C | 1088.38 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |