Willshire, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41 °F (low) to 60.4 °F (high). Annual precipitation averages 39.9 Inches. Willshire is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.9 °F | 32.7 °F | 2.61 in. |
| February | 19.8 °F | 36.2 °F | 2.19 in. |
| March | 28.3 °F | 47.1 °F | 2.74 in. |
| April | 38.8 °F | 60.8 °F | 3.89 in. |
| May | 50.2 °F | 71.9 °F | 4.51 in. |
| June | 60.3 °F | 80.8 °F | 4.42 in. |
| July | 63.3 °F | 84.4 °F | 4.35 in. |
| August | 61.1 °F | 82.5 °F | 3.82 in. |
| September | 53.6 °F | 76.9 °F | 3.07 in. |
| October | 42.7 °F | 64.4 °F | 2.87 in. |
| November | 32.5 °F | 49.7 °F | 2.99 in. |
| December | 23.7 °F | 37.7 °F | 2.47 in. |
| Annual | 41 °F | 60.4 °F | 39.93 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |