| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F | |
| 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: | 58g - Worcester/Monadnock Plateau | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 03451 - Hinsdale, NH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 12 | 23 | 33 | 44 | 53 | 58 | 57 | 48 | 36 | 29 | 18 | 35 |
| Avg Max Temp (°F) | 32 | 35 | 44 | 57 | 70 | 78 | 83 | 81 | 73 | 61 | 48 | 36 | 58 |
| Avg Precip (In.) | 3.67 | 2.79 | 3.62 | 3.64 | 3.96 | 3.85 | 3.62 | 4.07 | 3.46 | 3.8 | 3.81 | 3.37 | 43.66 |