Coventry, Rhode Island has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 40.7 °F (low) to 59.5 °F (high). Annual precipitation averages 50.7 Inches. Coventry is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.2 °F | 36.2 °F | 3.97 in. |
| February | 20.5 °F | 38.6 °F | 3.49 in. |
| March | 27.4 °F | 46.0 °F | 4.91 in. |
| April | 37.2 °F | 57.8 °F | 4.63 in. |
| May | 47.3 °F | 68.4 °F | 3.55 in. |
| June | 56.6 °F | 76.7 °F | 4.1 in. |
| July | 62.8 °F | 82.3 °F | 3.6 in. |
| August | 61.3 °F | 80.1 °F | 4.16 in. |
| September | 54.2 °F | 73.0 °F | 4.26 in. |
| October | 43.2 °F | 61.7 °F | 4.95 in. |
| November | 33.2 °F | 51.2 °F | 4.21 in. |
| December | 25.1 °F | 41.4 °F | 4.91 in. |
| Annual | 40.7 °F | 59.5 °F | 50.74 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |