Lithopolis, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.7 °F (low) to 62.3 °F (high). Annual precipitation averages 41.4 Inches. Lithopolis is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.8 °F | 36.7 °F | 3.01 in. |
| February | 22.6 °F | 39.9 °F | 2.54 in. |
| March | 30.7 °F | 50.1 °F | 3.49 in. |
| April | 41.1 °F | 63.2 °F | 3.99 in. |
| May | 51.9 °F | 72.8 °F | 4.25 in. |
| June | 60.9 °F | 81.2 °F | 4.55 in. |
| July | 64.2 °F | 84.0 °F | 4.29 in. |
| August | 62.3 °F | 83.0 °F | 3.45 in. |
| September | 55.0 °F | 77.6 °F | 3.15 in. |
| October | 43.5 °F | 65.2 °F | 2.78 in. |
| November | 33.2 °F | 52.5 °F | 2.96 in. |
| December | 26.2 °F | 41.2 °F | 2.94 in. |
| Annual | 42.7 °F | 62.3 °F | 41.4 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°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 |