| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 59a - Connecticut Valley | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 06071 - Somers, CT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 18 | 27 | 36 | 46 | 55 | 61 | 59 | 50 | 39 | 32 | 22 | 38 |
| Avg Max Temp (°F) | 35 | 38 | 47 | 59 | 70 | 79 | 83 | 82 | 74 | 63 | 51 | 40 | 60 |
| Avg Precip (In.) | 3.86 | 2.96 | 4.08 | 4.18 | 4.07 | 4.04 | 4.09 | 3.91 | 4.03 | 4.1 | 4.13 | 3.78 | 47.25 |