Saranac, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.7 °C (low) to 11.8 °C (high). Annual precipitation averages 1050.8 Millimeters. Saranac is located in USDA Plant Hardiness Zone 5a. 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 | -14 °C | -3.2 °C | 66.29 mm |
| February | -13 °C | -1.7 °C | 55.63 mm |
| March | -7.8 °C | 3 °C | 66.55 mm |
| April | -0.5 °C | 10.9 °C | 86.87 mm |
| May | 6.1 °C | 18.6 °C | 95 mm |
| June | 11.2 °C | 23.2 °C | 117.86 mm |
| July | 13.9 °C | 25.7 °C | 102.36 mm |
| August | 12.9 °C | 24.7 °C | 100.84 mm |
| September | 8.7 °C | 21 °C | 95 mm |
| October | 2.9 °C | 13.4 °C | 113.54 mm |
| November | -2.9 °C | 6.2 °C | 77.22 mm |
| December | -9.5 °C | -0.2 °C | 73.66 mm |
| Annual | 0.7 °C | 11.8 °C | 1050.82 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |