Three Oaks, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41 °F (low) to 58.4 °F (high). Annual precipitation averages 40.1 Inches. Three Oaks 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 | 18.4 °F | 31.6 °F | 2.72 in. |
| February | 20.3 °F | 34.8 °F | 2.23 in. |
| March | 28.1 °F | 45.3 °F | 2.37 in. |
| April | 38.4 °F | 57.5 °F | 3.53 in. |
| May | 49.3 °F | 68.8 °F | 3.89 in. |
| June | 58.2 °F | 78.2 °F | 4.27 in. |
| July | 62.9 °F | 82.0 °F | 4.02 in. |
| August | 61.6 °F | 80.3 °F | 4.22 in. |
| September | 54.2 °F | 74.5 °F | 3.42 in. |
| October | 43.2 °F | 62.1 °F | 4.03 in. |
| November | 33.3 °F | 48.2 °F | 2.89 in. |
| December | 24.4 °F | 36.9 °F | 2.47 in. |
| Annual | 41 °F | 58.4 °F | 40.06 in. |
| 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 : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |