Canso, Nova Scotia climate data is summarized below. Average annual temperatures range from 5 °C (low) to 8.7 °C (high). Annual precipitation averages 1100 Millimeters. Canso is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.92 °C | 0.18 °C | 69 mm |
| February | -5.78 °C | -1.13 °C | 69 mm |
| March | -3.47 °C | 0.3 °C | 71 mm |
| April | 0.23 °C | 3.48 °C | 97 mm |
| May | 4.91 °C | 8.11 °C | 81 mm |
| June | 9.77 °C | 12.84 °C | 91 mm |
| July | 14.96 °C | 17.95 °C | 68 mm |
| August | 16.8 °C | 19.85 °C | 88 mm |
| September | 14.14 °C | 17.73 °C | 93 mm |
| October | 9.65 °C | 13.1 °C | 119 mm |
| November | 4.4 °C | 8.39 °C | 120 mm |
| December | -0.7 °C | 4.02 °C | 134 mm |
| Annual | 5 °C | 8.7 °C | 1100 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |