| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 59b - Lower Worcester Plateau/Eastern Connecticut Upland |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 01518 - Fiskdale, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 12 | 14 | 23 | 33 | 43 | 53 | 58 | 56 | 48 | 37 | 29 | 19 | 35 |
| Avg Max Temp (°F) | 33 | 36 | 45 | 56 | 68 | 77 | 81 | 79 | 71 | 60 | 49 | 38 | 58 |
| Avg Precip (In.) | 4.36 | 3.22 | 4.31 | 4.26 | 3.87 | 3.87 | 3.73 | 3.98 | 4.14 | 4.28 | 4.36 | 4.09 | 48.46 |