Grosse Pointe Park, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42 °F (low) to 58.9 °F (high). Annual precipitation averages 35.6 Inches. Grosse Pointe 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.4 °F | 32.6 °F | 2.55 in. |
| February | 20.5 °F | 35.1 °F | 2.19 in. |
| March | 27.8 °F | 44.7 °F | 2.48 in. |
| April | 38.3 °F | 57.6 °F | 3.22 in. |
| May | 49.5 °F | 69.2 °F | 3.8 in. |
| June | 59.8 °F | 79.3 °F | 3.32 in. |
| July | 64.5 °F | 83.4 °F | 3.35 in. |
| August | 63.4 °F | 81.4 °F | 3.47 in. |
| September | 56.2 °F | 74.9 °F | 3.23 in. |
| October | 44.7 °F | 62.0 °F | 2.76 in. |
| November | 34.5 °F | 48.6 °F | 2.71 in. |
| December | 25.7 °F | 37.5 °F | 2.47 in. |
| Annual | 42 °F | 58.9 °F | 35.55 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |