Clarksville, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.1 °F (low) to 56.7 °F (high). Annual precipitation averages 37.5 Inches. Clarksville is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.2 °F | 29.7 °F | 2.6 in. |
| February | 16.6 °F | 32.4 °F | 2.13 in. |
| March | 24.2 °F | 42.9 °F | 2.29 in. |
| April | 35.0 °F | 55.9 °F | 3.69 in. |
| May | 46.8 °F | 67.9 °F | 4.09 in. |
| June | 56.4 °F | 77.5 °F | 3.71 in. |
| July | 60.1 °F | 81.3 °F | 3.43 in. |
| August | 58.5 °F | 79.3 °F | 3.56 in. |
| September | 50.5 °F | 72.7 °F | 3.17 in. |
| October | 39.8 °F | 59.7 °F | 3.5 in. |
| November | 30.5 °F | 46.1 °F | 2.91 in. |
| December | 22.4 °F | 34.9 °F | 2.44 in. |
| Annual | 38.1 °F | 56.7 °F | 37.52 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 |