| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°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 21 - May 31 | |
| 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 03071 - New Ipswich, NH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 12 | 21 | 31 | 42 | 50 | 56 | 54 | 46 | 36 | 27 | 16 | 34 |
| Avg Max Temp (°F) | 30 | 33 | 42 | 54 | 67 | 74 | 78 | 76 | 68 | 58 | 45 | 34 | 55 |
| Avg Precip (In.) | 4.31 | 3.37 | 4.27 | 4.22 | 4.24 | 4.3 | 4.11 | 4.2 | 3.89 | 4.67 | 4.42 | 4.12 | 50.12 |