Northford, Connecticut has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 41.6 °F (low) to 60.9 °F (high). Annual precipitation averages 51.1 Inches. Northford 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 | 20.0 °F | 36.9 °F | 3.98 in. |
| February | 21.3 °F | 39.4 °F | 3.4 in. |
| March | 28.7 °F | 47.0 °F | 4.83 in. |
| April | 38.7 °F | 59.2 °F | 4.53 in. |
| May | 48.6 °F | 69.7 °F | 4.0 in. |
| June | 58.1 °F | 78.4 °F | 4.34 in. |
| July | 63.8 °F | 84.0 °F | 3.67 in. |
| August | 62.3 °F | 82.2 °F | 4.09 in. |
| September | 55.0 °F | 75.6 °F | 4.49 in. |
| October | 43.3 °F | 63.7 °F | 5.19 in. |
| November | 33.6 °F | 52.2 °F | 3.98 in. |
| December | 25.7 °F | 42.1 °F | 4.62 in. |
| Annual | 41.6 °F | 60.9 °F | 51.12 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 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 | Dfb - Humid Continental Mild Summer, Wet All Year |