South Range, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.1 °C (low) to 10.5 °C (high). Annual precipitation averages 880.9 Millimeters. South Range is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -13.3 °C | -5.5 °C | 81.28 mm |
| February | -13.4 °C | -3.7 °C | 39.88 mm |
| March | -9.2 °C | 2.1 °C | 42.67 mm |
| April | -2.1 °C | 9.2 °C | 66.8 mm |
| May | 4.6 °C | 17.3 °C | 82.04 mm |
| June | 9.9 °C | 22.7 °C | 76.96 mm |
| July | 12.9 °C | 25.3 °C | 81.79 mm |
| August | 12.3 °C | 24.6 °C | 73.15 mm |
| September | 8.4 °C | 20.1 °C | 88.14 mm |
| October | 2.2 °C | 12.3 °C | 93.73 mm |
| November | -3.8 °C | 3.6 °C | 69.34 mm |
| December | -9.5 °C | -2.5 °C | 85.09 mm |
| Annual | -0.1 °C | 10.5 °C | 880.87 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |