Enfield, New Hampshire has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.9 °F (low) to 55.3 °F (high). Annual precipitation averages 42.4 Inches. Enfield is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.2 °F | 28.4 °F | 2.85 in. |
| February | 9.1 °F | 31.8 °F | 2.44 in. |
| March | 18.6 °F | 40.4 °F | 3.15 in. |
| April | 30.4 °F | 54.2 °F | 3.3 in. |
| May | 42.2 °F | 67.1 °F | 3.48 in. |
| June | 50.8 °F | 75.1 °F | 4.12 in. |
| July | 56.1 °F | 80.0 °F | 4.3 in. |
| August | 54.2 °F | 78.5 °F | 3.72 in. |
| September | 46.8 °F | 71.2 °F | 3.61 in. |
| October | 35.6 °F | 57.7 °F | 4.63 in. |
| November | 26.5 °F | 45.2 °F | 3.24 in. |
| December | 16.3 °F | 33.9 °F | 3.55 in. |
| Annual | 32.9 °F | 55.3 °F | 42.39 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |