New Hampshire, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.5 °F (low) to 60.4 °F (high). Annual precipitation averages 41.1 Inches. New Hampshire 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 | 18.7 °F | 33.5 °F | 3.0 in. |
| February | 20.6 °F | 37.0 °F | 2.35 in. |
| March | 29.1 °F | 47.3 °F | 3.14 in. |
| April | 39.4 °F | 60.8 °F | 3.99 in. |
| May | 50.7 °F | 71.4 °F | 4.24 in. |
| June | 60.1 °F | 80.1 °F | 4.4 in. |
| July | 63.0 °F | 83.4 °F | 4.5 in. |
| August | 61.4 °F | 82.1 °F | 3.4 in. |
| September | 54.3 °F | 76.5 °F | 3.12 in. |
| October | 43.1 °F | 63.9 °F | 2.89 in. |
| November | 32.8 °F | 49.9 °F | 3.09 in. |
| December | 24.5 °F | 38.5 °F | 2.97 in. |
| Annual | 41.5 °F | 60.4 °F | 41.09 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |