Allen Park, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.3 °C (low) to 15.1 °C (high). Annual precipitation averages 905.3 Millimeters. Allen Park 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 | -7.2 °C | 0.3 °C | 60.96 mm |
| February | -6.6 °C | 1.9 °C | 55.88 mm |
| March | -2.3 °C | 7.2 °C | 66.8 mm |
| April | 3.5 °C | 14.6 °C | 82.04 mm |
| May | 9.7 °C | 21.1 °C | 95.25 mm |
| June | 15.4 °C | 26.4 °C | 83.57 mm |
| July | 17.8 °C | 28.7 °C | 89.66 mm |
| August | 17.1 °C | 27.7 °C | 86.36 mm |
| September | 12.9 °C | 24.1 °C | 81.28 mm |
| October | 6.5 °C | 16.8 °C | 73.66 mm |
| November | 0.9 °C | 9.4 °C | 68.07 mm |
| December | -3.7 °C | 3.2 °C | 61.72 mm |
| Annual | 5.3 °C | 15.1 °C | 905.25 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |