Dearborn Heights, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.2 °F (low) to 59.4 °F (high). Annual precipitation averages 34.8 Inches. Dearborn Heights is located in USDA Plant Hardiness Zone 6b. 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 | 18.7 °F | 32.6 °F | 2.3 in. |
| February | 19.8 °F | 35.6 °F | 2.12 in. |
| March | 27.4 °F | 45.6 °F | 2.55 in. |
| April | 37.9 °F | 58.5 °F | 3.18 in. |
| May | 49.0 °F | 70.3 °F | 3.71 in. |
| June | 59.3 °F | 79.8 °F | 3.27 in. |
| July | 63.6 °F | 83.9 °F | 3.42 in. |
| August | 62.3 °F | 82.1 °F | 3.25 in. |
| September | 54.8 °F | 75.6 °F | 3.17 in. |
| October | 43.2 °F | 62.5 °F | 2.91 in. |
| November | 33.4 °F | 49.1 °F | 2.62 in. |
| December | 25.1 °F | 37.7 °F | 2.34 in. |
| Annual | 41.2 °F | 59.4 °F | 34.84 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 6b : -5°F to 0°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 |