Sharon, Connecticut has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.7 °C (low) to 15.3 °C (high). Annual precipitation averages 1178.6 Millimeters. Sharon is located in USDA Plant Hardiness Zone 6a. 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 | -9.8 °C | 1.3 °C | 80.52 mm |
| February | -8.8 °C | 3.1 °C | 65.53 mm |
| March | -4.3 °C | 7.5 °C | 87.63 mm |
| April | 1.3 °C | 15 °C | 88.39 mm |
| May | 7.1 °C | 21.3 °C | 94.49 mm |
| June | 12.2 °C | 25.6 °C | 116.59 mm |
| July | 15 °C | 28.5 °C | 119.63 mm |
| August | 14.2 °C | 27.4 °C | 110.74 mm |
| September | 9.9 °C | 23.1 °C | 113.54 mm |
| October | 3.7 °C | 16.6 °C | 119.38 mm |
| November | -1.6 °C | 10.1 °C | 84.58 mm |
| December | -6 °C | 3.9 °C | 97.54 mm |
| Annual | 2.7 °C | 15.3 °C | 1178.56 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |