Hope Valley, Rhode Island has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 42.1 °F (low) to 60.1 °F (high). Annual precipitation averages 50.2 Inches. Hope Valley is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.8 °F | 38.1 °F | 4.02 in. |
| February | 22.3 °F | 40.2 °F | 3.54 in. |
| March | 29.4 °F | 47.2 °F | 5.13 in. |
| April | 38.7 °F | 57.3 °F | 4.68 in. |
| May | 48.7 °F | 67.2 °F | 3.54 in. |
| June | 58.3 °F | 76.4 °F | 3.89 in. |
| July | 64.0 °F | 81.4 °F | 3.33 in. |
| August | 62.5 °F | 80.1 °F | 3.95 in. |
| September | 55.2 °F | 73.7 °F | 4.14 in. |
| October | 44.5 °F | 62.9 °F | 4.82 in. |
| November | 34.6 °F | 52.9 °F | 4.2 in. |
| December | 26.7 °F | 43.5 °F | 4.94 in. |
| Annual | 42.1 °F | 60.1 °F | 50.18 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |