Torrington, Connecticut has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 37.8 °F (low) to 60.1 °F (high). Annual precipitation averages 53 Inches. Torrington 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.9 °F | 35.3 °F | 3.82 in. |
| February | 17.2 °F | 38.4 °F | 3.18 in. |
| March | 24.6 °F | 46.3 °F | 4.52 in. |
| April | 34.8 °F | 59.4 °F | 3.85 in. |
| May | 45.4 °F | 70.4 °F | 4.05 in. |
| June | 54.8 °F | 78.7 °F | 4.68 in. |
| July | 60.0 °F | 83.5 °F | 4.63 in. |
| August | 58.3 °F | 81.6 °F | 4.86 in. |
| September | 50.9 °F | 74.2 °F | 5.16 in. |
| October | 39.5 °F | 62.1 °F | 5.56 in. |
| November | 30.1 °F | 50.9 °F | 4.04 in. |
| December | 22.4 °F | 40.1 °F | 4.68 in. |
| Annual | 37.8 °F | 60.1 °F | 53.03 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |