Wilmot, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.1 °C (low) to 15.8 °C (high). Annual precipitation averages 1047 Millimeters. Wilmot is located in USDA Plant Hardiness Zone 6b. 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 | -6.9 °C | 1.6 °C | 74.93 mm |
| February | -6.2 °C | 3.2 °C | 57.15 mm |
| March | -1.9 °C | 8.6 °C | 81.03 mm |
| April | 3.9 °C | 16.1 °C | 93.47 mm |
| May | 9.8 °C | 21.8 °C | 102.11 mm |
| June | 14.8 °C | 26.4 °C | 121.92 mm |
| July | 16.9 °C | 28.3 °C | 106.68 mm |
| August | 15.9 °C | 27.6 °C | 98.04 mm |
| September | 11.9 °C | 24.2 °C | 82.8 mm |
| October | 5.8 °C | 17.4 °C | 80.77 mm |
| November | 0.5 °C | 10.4 °C | 73.91 mm |
| December | -3.7 °C | 4.2 °C | 74.17 mm |
| Annual | 5.1 °C | 15.8 °C | 1046.98 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 |