Willowick, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.2 °C (low) to 14.4 °C (high). Annual precipitation averages 1048 Millimeters. Willowick is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.9 °C | 1.3 °C | 76.96 mm |
| February | -5.6 °C | 2.1 °C | 54.86 mm |
| March | -2.1 °C | 6.2 °C | 70.61 mm |
| April | 4.2 °C | 13.5 °C | 87.12 mm |
| May | 10.4 °C | 19.5 °C | 92.46 mm |
| June | 15.8 °C | 24.5 °C | 92.71 mm |
| July | 18.3 °C | 26.4 °C | 104.14 mm |
| August | 17.6 °C | 25.8 °C | 97.03 mm |
| September | 13.8 °C | 22.7 °C | 104.14 mm |
| October | 8.1 °C | 16.3 °C | 102.62 mm |
| November | 2.6 °C | 9.8 °C | 83.82 mm |
| December | -2.3 °C | 4.1 °C | 81.53 mm |
| Annual | 6.2 °C | 14.4 °C | 1048 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |