Cedarville, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.8 °C (low) to 16.6 °C (high). Annual precipitation averages 1068.1 Millimeters. Cedarville 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 | -6.4 °C | 2.2 °C | 79.5 mm |
| February | -5.3 °C | 4.2 °C | 61.21 mm |
| March | -0.8 °C | 9.9 °C | 87.38 mm |
| April | 5.1 °C | 16.9 °C | 107.7 mm |
| May | 11.1 °C | 22.6 °C | 118.62 mm |
| June | 16 °C | 27.3 °C | 116.08 mm |
| July | 17.6 °C | 28.8 °C | 112.01 mm |
| August | 16.4 °C | 28.2 °C | 79.76 mm |
| September | 12.4 °C | 25.1 °C | 76.96 mm |
| October | 6.3 °C | 18.4 °C | 73.66 mm |
| November | 0.7 °C | 10.8 °C | 76.71 mm |
| December | -3.4 °C | 4.6 °C | 78.49 mm |
| Annual | 5.8 °C | 16.6 °C | 1068.08 mm |
| 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 : -23.3°C to -20.6°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 |