| 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 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 59e - Narragansett/Bristol Lowland | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 02364 - Kingston, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 22 | 29 | 37 | 47 | 56 | 62 | 62 | 54 | 43 | 35 | 26 | 41 |
| Avg Max Temp (°F) | 38 | 40 | 47 | 57 | 67 | 77 | 82 | 80 | 73 | 62 | 52 | 43 | 60 |
| Avg Precip (In.) | 4.85 | 4.1 | 4.67 | 4.56 | 3.8 | 3.58 | 3.46 | 4.05 | 4.53 | 4.34 | 4.78 | 4.5 | 51.22 |