Newaygo, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.4 °F (low) to 56.4 °F (high). Annual precipitation averages 36.8 Inches. Newaygo is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.5 °F | 29.5 °F | 2.46 in. |
| February | 15.2 °F | 32.3 °F | 1.86 in. |
| March | 22.2 °F | 42.6 °F | 2.33 in. |
| April | 33.1 °F | 55.2 °F | 3.74 in. |
| May | 44.2 °F | 67.7 °F | 3.97 in. |
| June | 53.5 °F | 77.1 °F | 3.49 in. |
| July | 57.4 °F | 80.9 °F | 3.16 in. |
| August | 56.3 °F | 79.3 °F | 3.55 in. |
| September | 49.0 °F | 72.2 °F | 3.06 in. |
| October | 38.7 °F | 59.2 °F | 3.69 in. |
| November | 30.0 °F | 45.7 °F | 3.08 in. |
| December | 21.6 °F | 34.5 °F | 2.38 in. |
| Annual | 36.4 °F | 56.4 °F | 36.77 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |