Stratton Mountain, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.2 °C (low) to 10.9 °C (high). Annual precipitation averages 1564.9 Millimeters. Stratton Mountain is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -13.3 °C | -2.9 °C | 117.09 mm |
| February | -13.6 °C | -1.8 °C | 97.03 mm |
| March | -8.3 °C | 2.8 °C | 119.89 mm |
| April | -2.1 °C | 9.7 °C | 125.48 mm |
| May | 5.3 °C | 16.7 °C | 129.79 mm |
| June | 10.2 °C | 21.3 °C | 156.46 mm |
| July | 12.7 °C | 23.8 °C | 125.73 mm |
| August | 11.8 °C | 23 °C | 132.33 mm |
| September | 6.8 °C | 19.6 °C | 131.57 mm |
| October | 1.7 °C | 12.4 °C | 161.04 mm |
| November | -4.3 °C | 5.7 °C | 126.24 mm |
| December | -9.6 °C | -0.1 °C | 142.24 mm |
| Annual | -0.2 °C | 10.9 °C | 1564.89 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | Jun. 1 - Jun. 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 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |