| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | Zone 3b: -35°F to -30°F Zone 4b: -25°F to -20°F Zone 5a: -20°F to -15°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 3b: -35F to -30F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfc - Subarctic With Cool Summers And Year Around Rainfall |
| Ecoregion: | 58m - Quebec/New England Boundary Mountains |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 04216 - Andover, ME | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 0 | 1 | 13 | 26 | 38 | 48 | 52 | 51 | 43 | 32 | 23 | 8 | 28 |
| Avg Max Temp (°F) | 23 | 26 | 36 | 47 | 62 | 71 | 76 | 74 | 65 | 53 | 40 | 28 | 50 |
| Avg Precip (In.) | 2.82 | 2.29 | 2.98 | 2.89 | 3.09 | 3.89 | 3.67 | 3.49 | 3.16 | 3.31 | 3.28 | 2.84 | 37.69 |