Coventry, Vermont has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.1 °C (low) to 11.6 °C (high). Annual precipitation averages 1196.1 Millimeters. Coventry is located in USDA Plant Hardiness Zone 4b. 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 | -15.2 °C | -4.2 °C | 83.31 mm |
| February | -14.5 °C | -2.1 °C | 70.87 mm |
| March | -8.7 °C | 2.9 °C | 79.5 mm |
| April | -0.7 °C | 10.9 °C | 92.71 mm |
| May | 5.9 °C | 18.6 °C | 105.92 mm |
| June | 10.8 °C | 23.3 °C | 119.13 mm |
| July | 13.4 °C | 25.8 °C | 123.44 mm |
| August | 12.5 °C | 24.9 °C | 116.08 mm |
| September | 8.3 °C | 20.8 °C | 97.54 mm |
| October | 2.3 °C | 13.3 °C | 118.87 mm |
| November | -3.5 °C | 5.9 °C | 92.71 mm |
| December | -9.7 °C | -0.4 °C | 96.01 mm |
| Annual | 0.1 °C | 11.6 °C | 1196.09 mm |
| 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 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |