Buxton, Maine has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.9 °C (low) to 13.7 °C (high). Annual precipitation averages 1270.3 Millimeters. Buxton is located in USDA Plant Hardiness Zone 5b. 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 | -11.6 °C | -0.6 °C | 87.38 mm |
| February | -11.2 °C | 1.2 °C | 90.17 mm |
| March | -5.8 °C | 5.7 °C | 108.97 mm |
| April | 0.3 °C | 12.6 °C | 114.81 mm |
| May | 6.3 °C | 19.2 °C | 96.77 mm |
| June | 11.8 °C | 24 °C | 115.57 mm |
| July | 15 °C | 27.2 °C | 97.79 mm |
| August | 14.1 °C | 26.6 °C | 91.19 mm |
| September | 9.8 °C | 22.3 °C | 99.57 mm |
| October | 3.5 °C | 15.3 °C | 139.7 mm |
| November | -1.8 °C | 8.6 °C | 111 mm |
| December | -7.5 °C | 2.6 °C | 117.35 mm |
| Annual | 1.9 °C | 13.7 °C | 1270.27 mm |
| 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |