Hanoverton, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.5 °C (low) to 16 °C (high). Annual precipitation averages 1037.9 Millimeters. Hanoverton is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.4 °C | 1.6 °C | 78.74 mm |
| February | -6.7 °C | 3.3 °C | 62.74 mm |
| March | -2.5 °C | 8.7 °C | 80.77 mm |
| April | 3.4 °C | 16.3 °C | 93.22 mm |
| May | 8.9 °C | 21.9 °C | 101.09 mm |
| June | 14 °C | 26.6 °C | 108.97 mm |
| July | 16.2 °C | 28.7 °C | 103.38 mm |
| August | 15.1 °C | 28.1 °C | 87.12 mm |
| September | 11.3 °C | 24.6 °C | 91.19 mm |
| October | 5.2 °C | 17.8 °C | 79.5 mm |
| November | 0.2 °C | 10.4 °C | 71.12 mm |
| December | -4.2 °C | 4.3 °C | 80.01 mm |
| Annual | 4.5 °C | 16 °C | 1037.85 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |