Arlington, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.8 °F (low) to 56.8 °F (high). Annual precipitation averages 47.2 Inches. Arlington 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.5 °F | 30.9 °F | 3.45 in. |
| February | 12.6 °F | 33.8 °F | 2.6 in. |
| March | 21.3 °F | 42.4 °F | 3.48 in. |
| April | 32.7 °F | 56.1 °F | 3.48 in. |
| May | 43.5 °F | 68.1 °F | 4.13 in. |
| June | 52.5 °F | 76.0 °F | 5.05 in. |
| July | 56.9 °F | 80.3 °F | 4.54 in. |
| August | 55.1 °F | 79.0 °F | 4.46 in. |
| September | 47.4 °F | 72.2 °F | 3.94 in. |
| October | 37.0 °F | 59.3 °F | 4.54 in. |
| November | 28.2 °F | 47.4 °F | 3.42 in. |
| December | 19.1 °F | 36.4 °F | 4.08 in. |
| Annual | 34.8 °F | 56.8 °F | 47.17 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |