Wilson, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.5 °C (low) to 16.1 °C (high). Annual precipitation averages 1138.2 Millimeters. Wilson 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 | -6.1 °C | 2.4 °C | 88.9 mm |
| February | -5.1 °C | 4.2 °C | 70.1 mm |
| March | -1.2 °C | 9.4 °C | 94.23 mm |
| April | 4.6 °C | 16.4 °C | 100.08 mm |
| May | 9.7 °C | 21.4 °C | 112.52 mm |
| June | 14.7 °C | 26.2 °C | 122.94 mm |
| July | 17.3 °C | 28.2 °C | 111 mm |
| August | 15.8 °C | 27.6 °C | 95.5 mm |
| September | 12.2 °C | 24.4 °C | 95 mm |
| October | 6.1 °C | 17.7 °C | 80.01 mm |
| November | 1.2 °C | 10.8 °C | 81.03 mm |
| December | -3.1 °C | 4.9 °C | 86.87 mm |
| Annual | 5.5 °C | 16.1 °C | 1138.18 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |