| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| 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: | 59f - Gulf of Maine Coastal Lowland |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 03848 - Kingston, NH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 17 | 26 | 34 | 44 | 54 | 59 | 58 | 49 | 38 | 31 | 21 | 37 |
| Avg Max Temp (°F) | 34 | 37 | 46 | 57 | 69 | 78 | 83 | 81 | 73 | 62 | 50 | 38 | 59 |
| Avg Precip (In.) | 3.86 | 3.18 | 3.97 | 4.23 | 3.63 | 3.64 | 3.52 | 3.4 | 3.8 | 4.16 | 4.46 | 3.99 | 45.84 |