East Hampton, Connecticut has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.2 °F (low) to 60 °F (high). Annual precipitation averages 51.4 Inches. East Hampton is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.1 °F | 36.2 °F | 3.86 in. |
| February | 20.3 °F | 38.7 °F | 3.34 in. |
| March | 27.5 °F | 46.4 °F | 4.6 in. |
| April | 37.2 °F | 58.7 °F | 4.4 in. |
| May | 46.8 °F | 68.8 °F | 3.81 in. |
| June | 56.3 °F | 77.3 °F | 4.57 in. |
| July | 61.9 °F | 82.5 °F | 4.07 in. |
| August | 60.5 °F | 81.1 °F | 4.35 in. |
| September | 53.0 °F | 74.2 °F | 4.57 in. |
| October | 42.1 °F | 62.6 °F | 5.13 in. |
| November | 32.8 °F | 51.7 °F | 4.07 in. |
| December | 25.1 °F | 41.8 °F | 4.65 in. |
| Annual | 40.2 °F | 60 °F | 51.42 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |