Sydney, Nova Scotia climate data is summarized below. Average annual temperatures range from 3.5 °C (low) to 9.4 °C (high). Annual precipitation averages 990 Millimeters. Sydney is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.22 °C | -0.64 °C | 61 mm |
| February | -7.3 °C | -1.66 °C | 64 mm |
| March | -4.93 °C | 0.43 °C | 60 mm |
| April | -0.91 °C | 4.81 °C | 80 mm |
| May | 3.93 °C | 10.38 °C | 73 mm |
| June | 8.71 °C | 15.31 °C | 85 mm |
| July | 13.84 °C | 20.81 °C | 57 mm |
| August | 15.09 °C | 21.82 °C | 79 mm |
| September | 11.91 °C | 18.34 °C | 90 mm |
| October | 7.69 °C | 12.55 °C | 106 mm |
| November | 2.73 °C | 7.5 °C | 107 mm |
| December | -1.96 °C | 2.87 °C | 128 mm |
| Annual | 3.5 °C | 9.4 °C | 990 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |