Cole Harbour, Nova Scotia climate data is summarized below. Average annual temperatures range from 3.8 °C (low) to 11.4 °C (high). Annual precipitation averages 1400 Millimeters. Cole Harbour is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.04 °C | 0.55 °C | 76 mm |
| February | -6.91 °C | 0.46 °C | 93 mm |
| March | -4.07 °C | 3.58 °C | 88 mm |
| April | 0.93 °C | 8.37 °C | 117 mm |
| May | 5.49 °C | 13.59 °C | 98 mm |
| June | 10.24 °C | 17.74 °C | 129 mm |
| July | 14.79 °C | 22.38 °C | 82 mm |
| August | 15.2 °C | 22.88 °C | 108 mm |
| September | 11.7 °C | 19.67 °C | 135 mm |
| October | 7.03 °C | 14.33 °C | 158 mm |
| November | 2.04 °C | 8.87 °C | 148 mm |
| December | -3.26 °C | 3.79 °C | 168 mm |
| Annual | 3.8 °C | 11.4 °C | 1400 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |