Otisville, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.1 °C (low) to 14 °C (high). Annual precipitation averages 852.2 Millimeters. Otisville 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.3 °C | -1.1 °C | 57.4 mm |
| February | -9.2 °C | 0.6 °C | 44.45 mm |
| March | -4.7 °C | 5.9 °C | 50.8 mm |
| April | 1.3 °C | 13.3 °C | 84.33 mm |
| May | 7.7 °C | 20.2 °C | 95 mm |
| June | 13.1 °C | 25.5 °C | 85.34 mm |
| July | 15.3 °C | 27.6 °C | 90.42 mm |
| August | 14.5 °C | 26.5 °C | 79.5 mm |
| September | 10.2 °C | 23.1 °C | 73.41 mm |
| October | 4.3 °C | 15.8 °C | 75.69 mm |
| November | -0.9 °C | 8.2 °C | 62.48 mm |
| December | -5.5 °C | 1.8 °C | 53.34 mm |
| Annual | 3.1 °C | 14 °C | 852.16 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |