Saranac, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.8 °C (low) to 14.2 °C (high). Annual precipitation averages 948.2 Millimeters. Saranac 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 | -8.3 °C | -0.9 °C | 65.53 mm |
| February | -8.1 °C | 0.7 °C | 54.36 mm |
| March | -3.8 °C | 6.4 °C | 57.91 mm |
| April | 1.8 °C | 13.9 °C | 93.73 mm |
| May | 8 °C | 20.5 °C | 103.63 mm |
| June | 13.9 °C | 25.8 °C | 92.46 mm |
| July | 16.2 °C | 27.9 °C | 87.88 mm |
| August | 15.3 °C | 26.9 °C | 89.92 mm |
| September | 10.6 °C | 23 °C | 79.76 mm |
| October | 4.7 °C | 15.9 °C | 87.88 mm |
| November | -0.4 °C | 8.3 °C | 73.91 mm |
| December | -4.8 °C | 1.9 °C | 61.21 mm |
| Annual | 3.8 °C | 14.2 °C | 948.18 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |