Coral Harbour, Nunavut climate data is summarized below. Average annual temperatures range from -11.7 °C (low) to -5.6 °C (high). Annual precipitation averages 166 Millimeters. Coral Harbour is located in USDA Plant Hardiness Zone 0a. The growing season typically runs from the last frost around Jun. 11 - Jun. 20 through the first frost around Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -28.19 °C | -22.4 °C | 0 mm |
| February | -28.85 °C | -21.98 °C | 0 mm |
| March | -26.14 °C | -17.57 °C | 0 mm |
| April | -17.4 °C | -8.83 °C | 0 mm |
| May | -8.41 °C | -2.37 °C | 4 mm |
| June | 0.03 °C | 5.51 °C | 24 mm |
| July | 6.4 °C | 13.66 °C | 29 mm |
| August | 5.67 °C | 11.31 °C | 52 mm |
| September | 0.4 °C | 4.27 °C | 37 mm |
| October | -5.57 °C | -2.04 °C | 20 mm |
| November | -15.66 °C | -9.88 °C | 0 mm |
| December | -22.94 °C | -16.89 °C | 0 mm |
| Annual | -11.7 °C | -5.6 °C | 166 mm |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | Jun. 11 - Jun. 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | |
| Current Drought Conditions | Normal |