Manistee, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.9 °F (low) to 54 °F (high). Annual precipitation averages 35.2 Inches. Manistee is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.8 °F | 29.3 °F | 2.03 in. |
| February | 19.0 °F | 31.3 °F | 1.53 in. |
| March | 24.5 °F | 39.5 °F | 2.01 in. |
| April | 34.4 °F | 51.8 °F | 3.53 in. |
| May | 44.5 °F | 63.5 °F | 3.35 in. |
| June | 54.0 °F | 72.9 °F | 3.6 in. |
| July | 59.9 °F | 76.7 °F | 3.29 in. |
| August | 59.5 °F | 75.9 °F | 3.25 in. |
| September | 52.6 °F | 70.0 °F | 3.2 in. |
| October | 42.1 °F | 57.7 °F | 3.82 in. |
| November | 33.1 °F | 44.9 °F | 2.99 in. |
| December | 24.6 °F | 34.4 °F | 2.55 in. |
| Annual | 38.9 °F | 54 °F | 35.15 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| 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 | Dfb - Humid Continental Mild Summer, Wet All Year |