Hampton Falls, New Hampshire has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 38.6 °F (low) to 58.4 °F (high). Annual precipitation averages 50 Inches. Hampton Falls is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.4 °F | 34.1 °F | 3.72 in. |
| February | 17.8 °F | 36.8 °F | 3.6 in. |
| March | 25.4 °F | 44.0 °F | 4.63 in. |
| April | 35.3 °F | 56.5 °F | 4.4 in. |
| May | 45.4 °F | 66.4 °F | 4.18 in. |
| June | 55.3 °F | 76.0 °F | 4.44 in. |
| July | 61.0 °F | 82.0 °F | 3.61 in. |
| August | 59.5 °F | 80.7 °F | 3.58 in. |
| September | 52.2 °F | 73.4 °F | 4.01 in. |
| October | 40.8 °F | 61.1 °F | 5.03 in. |
| November | 31.6 °F | 50.0 °F | 4.0 in. |
| December | 22.7 °F | 39.4 °F | 4.75 in. |
| Annual | 38.6 °F | 58.4 °F | 49.95 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |