New Ross, Nova Scotia climate data is summarized below. Average annual temperatures range from 2 °C (low) to 11.6 °C (high). Annual precipitation averages 1111 Millimeters. New Ross 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.41 °C | -1.54 °C | 39 mm |
| February | -10.13 °C | -1.11 °C | 40 mm |
| March | -7.37 °C | 2.63 °C | 58 mm |
| April | -0.15 °C | 9.65 °C | 86 mm |
| May | 5.44 °C | 16 °C | 92 mm |
| June | 10.32 °C | 20.48 °C | 117 mm |
| July | 14.77 °C | 25.02 °C | 81 mm |
| August | 14.21 °C | 24.7 °C | 104 mm |
| September | 9.68 °C | 20.3 °C | 105 mm |
| October | 4.38 °C | 13.84 °C | 129 mm |
| November | -0.52 °C | 7.71 °C | 128 mm |
| December | -6.11 °C | 1.64 °C | 132 mm |
| Annual | 2 °C | 11.6 °C | 1111 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 | Abnormally Dry |