Clinton, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.4 °C (low) to 15.1 °C (high). Annual precipitation averages 888.5 Millimeters. Clinton 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 | -9 °C | -0.1 °C | 58.93 mm |
| February | -8.5 °C | 1.7 °C | 50.29 mm |
| March | -3.9 °C | 7.3 °C | 61.72 mm |
| April | 2.1 °C | 14.8 °C | 84.58 mm |
| May | 8.3 °C | 21.3 °C | 100.08 mm |
| June | 13.6 °C | 26.6 °C | 88.9 mm |
| July | 15.6 °C | 28.8 °C | 83.31 mm |
| August | 14.7 °C | 27.7 °C | 85.34 mm |
| September | 10.4 °C | 24.2 °C | 75.95 mm |
| October | 4.3 °C | 16.9 °C | 72.9 mm |
| November | -1.1 °C | 9.1 °C | 69.85 mm |
| December | -5.6 °C | 2.7 °C | 56.64 mm |
| Annual | 3.4 °C | 15.1 °C | 888.49 mm |
| 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 : -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 |