| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F 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: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 58q - Sunapee Uplands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 03284 - Springfield, NH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 9 | 19 | 30 | 41 | 50 | 55 | 53 | 45 | 34 | 26 | 14 | 32 |
| Avg Max Temp (°F) | 29 | 32 | 41 | 54 | 67 | 75 | 79 | 77 | 69 | 57 | 44 | 33 | 55 |
| Avg Precip (In.) | 3.15 | 2.65 | 3.25 | 3.57 | 4.04 | 3.91 | 4.03 | 4.01 | 3.65 | 4.06 | 3.74 | 3.26 | 43.32 |