Warren, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.8 °F (low) to 59 °F (high). Annual precipitation averages 34.4 Inches. Warren is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.1 °F | 32.3 °F | 2.46 in. |
| February | 20.3 °F | 35.2 °F | 2.04 in. |
| March | 27.5 °F | 44.7 °F | 2.38 in. |
| April | 38.2 °F | 57.8 °F | 3.14 in. |
| May | 49.4 °F | 69.6 °F | 3.71 in. |
| June | 59.7 °F | 79.4 °F | 3.17 in. |
| July | 64.1 °F | 83.7 °F | 3.36 in. |
| August | 63.1 °F | 81.8 °F | 3.33 in. |
| September | 55.7 °F | 75.1 °F | 3.11 in. |
| October | 44.1 °F | 62.0 °F | 2.83 in. |
| November | 34.3 °F | 48.7 °F | 2.53 in. |
| December | 25.6 °F | 37.4 °F | 2.33 in. |
| Annual | 41.8 °F | 59 °F | 34.39 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |