Amherst, Nova Scotia climate data is summarized below. Average annual temperatures range from 1.9 °C (low) to 10.8 °C (high). Annual precipitation averages 873 Millimeters. Amherst is located in USDA Plant Hardiness Zone 5b. 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 | -11.23 °C | -2.35 °C | 16 mm |
| February | -11.13 °C | -1.98 °C | 3 mm |
| March | -7.32 °C | 2.04 °C | 26 mm |
| April | -0.4 °C | 8.63 °C | 62 mm |
| May | 5.16 °C | 15 °C | 81 mm |
| June | 10.18 °C | 19.49 °C | 111 mm |
| July | 14.43 °C | 23.8 °C | 93 mm |
| August | 14.2 °C | 23.38 °C | 104 mm |
| September | 10.07 °C | 19.39 °C | 103 mm |
| October | 4.91 °C | 13.53 °C | 97 mm |
| November | -0.14 °C | 7.49 °C | 90 mm |
| December | -6.22 °C | 1.21 °C | 87 mm |
| Annual | 1.9 °C | 10.8 °C | 873 mm |
| 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 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |