| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°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 4b: -25F to -20F | |
| 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: | 58f - Vermont Piedmont | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 03766 - Lebanon, NH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 9 | 20 | 31 | 42 | 51 | 56 | 54 | 46 | 35 | 27 | 14 | 33 |
| Avg Max Temp (°F) | 29 | 33 | 42 | 55 | 68 | 76 | 81 | 78 | 70 | 58 | 45 | 33 | 56 |
| Avg Precip (In.) | 3.25 | 2.41 | 2.91 | 3.17 | 3.61 | 3.38 | 3.79 | 4.08 | 3.83 | 3.55 | 3.43 | 3.03 | 40.43 |