Norton Shores, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.8 °C (low) to 13.1 °C (high). Annual precipitation averages 890.3 Millimeters. Norton Shores 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 | -6.7 °C | -0.5 °C | 68.33 mm |
| February | -6.4 °C | 0.7 °C | 48.77 mm |
| March | -3.1 °C | 5.4 °C | 53.59 mm |
| April | 2.6 °C | 12.1 °C | 90.68 mm |
| May | 8.4 °C | 18.3 °C | 83.06 mm |
| June | 13.8 °C | 23.4 °C | 84.33 mm |
| July | 16.7 °C | 25.7 °C | 71.12 mm |
| August | 16.2 °C | 25.3 °C | 80.01 mm |
| September | 12.2 °C | 21.8 °C | 81.79 mm |
| October | 6.3 °C | 15 °C | 89.15 mm |
| November | 1.1 °C | 8.1 °C | 74.68 mm |
| December | -3.4 °C | 2.3 °C | 64.77 mm |
| Annual | 4.8 °C | 13.1 °C | 890.28 mm |
| 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 : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |