Freedom, New Hampshire has a Subarctic With Cool Summers And Year Around Rainfall climate (Köppen classification: Dfc). Average annual temperatures range from 0.9 °C (low) to 13 °C (high). Annual precipitation averages 1288 Millimeters. Freedom is located in USDA Plant Hardiness Zone 5a. 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 | -12.5 °C | -1.6 °C | 90.68 mm |
| February | -12.1 °C | 0 °C | 90.42 mm |
| March | -6.7 °C | 4.8 °C | 99.82 mm |
| April | -0.6 °C | 12.2 °C | 111.76 mm |
| May | 5.6 °C | 19.4 °C | 100.08 mm |
| June | 10.8 °C | 24 °C | 115.82 mm |
| July | 13.7 °C | 26.7 °C | 111.76 mm |
| August | 12.8 °C | 26 °C | 95.76 mm |
| September | 8.4 °C | 21.7 °C | 97.54 mm |
| October | 2.5 °C | 14.2 °C | 137.67 mm |
| November | -2.7 °C | 7.2 °C | 115.82 mm |
| December | -8.1 °C | 1.4 °C | 120.9 mm |
| Annual | 0.9 °C | 13 °C | 1288.03 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfc - Subarctic With Cool Summers And Year Around Rainfall |