Farmington Hills, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.6 °F (low) to 58.1 °F (high). Annual precipitation averages 33.4 Inches. Farmington Hills 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.9 °F | 31.1 °F | 2.32 in. |
| February | 17.9 °F | 34.2 °F | 1.81 in. |
| March | 25.8 °F | 44.4 °F | 2.26 in. |
| April | 36.4 °F | 57.1 °F | 3.0 in. |
| May | 47.8 °F | 69.2 °F | 3.83 in. |
| June | 57.8 °F | 78.6 °F | 3.16 in. |
| July | 61.9 °F | 82.7 °F | 3.2 in. |
| August | 60.7 °F | 80.9 °F | 3.23 in. |
| September | 53.3 °F | 74.4 °F | 3.15 in. |
| October | 41.8 °F | 61.0 °F | 2.81 in. |
| November | 32.0 °F | 47.9 °F | 2.47 in. |
| December | 23.4 °F | 36.1 °F | 2.16 in. |
| Annual | 39.6 °F | 58.1 °F | 33.4 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 |