Island Pond, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 29.7 °F (low) to 51.9 °F (high). Annual precipitation averages 45.5 Inches. Island Pond is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.0 °F | 24.5 °F | 2.87 in. |
| February | 2.9 °F | 27.3 °F | 2.3 in. |
| March | 13.3 °F | 36.5 °F | 2.76 in. |
| April | 28.2 °F | 50.1 °F | 3.47 in. |
| May | 39.6 °F | 64.5 °F | 4.25 in. |
| June | 49.0 °F | 72.5 °F | 4.79 in. |
| July | 53.9 °F | 76.8 °F | 4.87 in. |
| August | 52.4 °F | 75.9 °F | 4.67 in. |
| September | 44.8 °F | 68.4 °F | 4.08 in. |
| October | 34.6 °F | 54.9 °F | 4.7 in. |
| November | 24.0 °F | 41.6 °F | 3.48 in. |
| December | 11.3 °F | 30.1 °F | 3.3 in. |
| Annual | 29.7 °F | 51.9 °F | 45.54 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |