Carleton, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.6 °C (low) to 15 °C (high). Annual precipitation averages 908.6 Millimeters. Carleton 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.9 °C | 0.2 °C | 61.47 mm |
| February | -7.3 °C | 1.8 °C | 52.07 mm |
| March | -2.8 °C | 7.3 °C | 62.99 mm |
| April | 3.1 °C | 14.6 °C | 78.99 mm |
| May | 9.3 °C | 21 °C | 98.55 mm |
| June | 14.7 °C | 26.3 °C | 96.01 mm |
| July | 16.8 °C | 28.4 °C | 84.84 mm |
| August | 15.9 °C | 27.3 °C | 87.12 mm |
| September | 12.1 °C | 23.9 °C | 85.6 mm |
| October | 5.5 °C | 16.9 °C | 71.37 mm |
| November | 0.1 °C | 9.3 °C | 68.58 mm |
| December | -4.3 °C | 3.1 °C | 60.96 mm |
| Annual | 4.6 °C | 15 °C | 908.55 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 |