| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 59c - Southern New England Coastal Plains and Hills | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 02892 - West Kingston, RI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 21 | 28 | 36 | 46 | 55 | 61 | 60 | 52 | 41 | 34 | 25 | 40 |
| Avg Max Temp (°F) | 38 | 40 | 48 | 57 | 67 | 76 | 81 | 80 | 73 | 63 | 53 | 43 | 60 |
| Avg Precip (In.) | 4.71 | 3.75 | 4.9 | 4.69 | 4.11 | 3.92 | 3.32 | 4.27 | 4.16 | 4 | 5.06 | 4.59 | 51.49 |