Spring Lake, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 40.5 °F (low) to 56.2 °F (high). Annual precipitation averages 35.7 Inches. Spring Lake is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.6 °F | 31.2 °F | 2.78 in. |
| February | 20.1 °F | 33.3 °F | 1.92 in. |
| March | 26.3 °F | 42.1 °F | 2.07 in. |
| April | 36.6 °F | 54.7 °F | 3.6 in. |
| May | 47.3 °F | 65.9 °F | 3.57 in. |
| June | 57.0 °F | 75.3 °F | 3.38 in. |
| July | 61.8 °F | 79.2 °F | 3.15 in. |
| August | 60.9 °F | 78.3 °F | 3.09 in. |
| September | 53.7 °F | 72.1 °F | 3.17 in. |
| October | 43.1 °F | 59.7 °F | 3.46 in. |
| November | 33.6 °F | 46.7 °F | 2.95 in. |
| December | 25.6 °F | 36.2 °F | 2.57 in. |
| Annual | 40.5 °F | 56.2 °F | 35.71 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 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 | Dfb - Humid Continental Mild Summer, Wet All Year |