Beacon Falls, Connecticut has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.6 °F (low) to 60.2 °F (high). Annual precipitation averages 52 Inches. Beacon Falls is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.0 °F | 36.4 °F | 3.93 in. |
| February | 20.3 °F | 39.0 °F | 3.36 in. |
| March | 27.5 °F | 46.7 °F | 4.64 in. |
| April | 37.8 °F | 58.4 °F | 4.29 in. |
| May | 47.8 °F | 69.7 °F | 4.18 in. |
| June | 57.2 °F | 77.8 °F | 4.52 in. |
| July | 62.7 °F | 83.1 °F | 4.26 in. |
| August | 61.2 °F | 81.3 °F | 4.25 in. |
| September | 54.0 °F | 74.5 °F | 4.63 in. |
| October | 42.3 °F | 62.8 °F | 5.24 in. |
| November | 32.7 °F | 51.7 °F | 4.14 in. |
| December | 24.8 °F | 41.3 °F | 4.55 in. |
| Annual | 40.6 °F | 60.2 °F | 51.99 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |