East Greenwich, Rhode Island has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.9 °F (low) to 60 °F (high). Annual precipitation averages 50.8 Inches. East Greenwich is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.3 °F | 37.7 °F | 4.19 in. |
| February | 22.7 °F | 39.6 °F | 3.64 in. |
| March | 29.5 °F | 46.6 °F | 5.37 in. |
| April | 39.2 °F | 57.2 °F | 4.77 in. |
| May | 49.1 °F | 67.2 °F | 3.49 in. |
| June | 58.7 °F | 76.2 °F | 4.07 in. |
| July | 64.9 °F | 82.0 °F | 3.39 in. |
| August | 63.6 °F | 80.7 °F | 3.74 in. |
| September | 56.8 °F | 73.9 °F | 4.12 in. |
| October | 45.6 °F | 62.8 °F | 4.62 in. |
| November | 35.6 °F | 52.4 °F | 4.45 in. |
| December | 27.4 °F | 43.1 °F | 4.9 in. |
| Annual | 42.9 °F | 60 °F | 50.75 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |