Stellarton, Nova Scotia climate data is summarized below. Average annual temperatures range from 2.4 °C (low) to 11.6 °C (high). Annual precipitation averages 1095 Millimeters. Stellarton is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.03 °C | -1.38 °C | 31 mm |
| February | -9.86 °C | -1.19 °C | 39 mm |
| March | -7.09 °C | 1.94 °C | 41 mm |
| April | -0.56 °C | 8.54 °C | 75 mm |
| May | 5.22 °C | 15.41 °C | 95 mm |
| June | 10.16 °C | 20.24 °C | 108 mm |
| July | 14.89 °C | 25.36 °C | 95 mm |
| August | 14.64 °C | 24.87 °C | 147 mm |
| September | 10.46 °C | 20.76 °C | 121 mm |
| October | 5.28 °C | 14.32 °C | 115 mm |
| November | 0.69 °C | 8.35 °C | 123 mm |
| December | -5.17 °C | 2.15 °C | 105 mm |
| Annual | 2.4 °C | 11.6 °C | 1095 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |