Rutland, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.2 °F (low) to 56 °F (high). Annual precipitation averages 40.3 Inches. Rutland is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 10.7 °F | 29.4 °F | 2.65 in. |
| February | 11.7 °F | 32.4 °F | 2.14 in. |
| March | 21.0 °F | 41.1 °F | 2.69 in. |
| April | 32.6 °F | 55.1 °F | 3.11 in. |
| May | 44.1 °F | 67.6 °F | 3.64 in. |
| June | 53.5 °F | 76.1 °F | 4.26 in. |
| July | 58.2 °F | 80.5 °F | 4.58 in. |
| August | 56.6 °F | 78.8 °F | 4.0 in. |
| September | 49.0 °F | 71.6 °F | 3.43 in. |
| October | 38.0 °F | 58.4 °F | 3.99 in. |
| November | 28.7 °F | 46.2 °F | 2.75 in. |
| December | 18.6 °F | 34.8 °F | 3.07 in. |
| Annual | 35.2 °F | 56 °F | 40.31 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°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 |