Sparta, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.7 °F (low) to 59.5 °F (high). Annual precipitation averages 42.6 Inches. Sparta 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 | 17.0 °F | 33.2 °F | 3.27 in. |
| February | 18.6 °F | 36.1 °F | 2.43 in. |
| March | 27.1 °F | 46.5 °F | 3.34 in. |
| April | 38.1 °F | 60.7 °F | 4.05 in. |
| May | 49.1 °F | 70.8 °F | 4.39 in. |
| June | 58.1 °F | 79.0 °F | 4.73 in. |
| July | 60.9 °F | 82.6 °F | 4.34 in. |
| August | 59.1 °F | 80.9 °F | 3.61 in. |
| September | 52.6 °F | 74.8 °F | 3.42 in. |
| October | 41.0 °F | 62.7 °F | 2.89 in. |
| November | 31.5 °F | 49.0 °F | 3.07 in. |
| December | 23.1 °F | 37.8 °F | 3.08 in. |
| Annual | 39.7 °F | 59.5 °F | 42.62 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 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |