Isle aux Morts, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 3.4 °C (low) to 7 °C (high). Annual precipitation averages 1146 Millimeters. Isle aux Morts is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.84 °C | -1.4 °C | 59 mm |
| February | -6.63 °C | -2.42 °C | 56 mm |
| March | -5 °C | -1.23 °C | 58 mm |
| April | -0.84 °C | 2.34 °C | 87 mm |
| May | 3.63 °C | 7.01 °C | 94 mm |
| June | 8.21 °C | 11.68 °C | 86 mm |
| July | 13.11 °C | 16.56 °C | 100 mm |
| August | 14.98 °C | 18.5 °C | 117 mm |
| September | 11.74 °C | 15.31 °C | 122 mm |
| October | 7.12 °C | 10.35 °C | 123 mm |
| November | 2.35 °C | 5.88 °C | 132 mm |
| December | -2.3 °C | 1.67 °C | 112 mm |
| Annual | 3.4 °C | 7 °C | 1146 mm |
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.84 °C | -1.4 °C | 59 mm |
| February | -6.63 °C | -2.42 °C | 56 mm |
| March | -5 °C | -1.23 °C | 58 mm |
| April | -0.84 °C | 2.34 °C | 87 mm |
| May | 3.63 °C | 7.01 °C | 94 mm |
| June | 8.21 °C | 11.68 °C | 86 mm |
| July | 13.11 °C | 16.56 °C | 100 mm |
| August | 14.98 °C | 18.5 °C | 117 mm |
| September | 11.74 °C | 15.31 °C | 122 mm |
| October | 7.12 °C | 10.35 °C | 123 mm |
| November | 2.35 °C | 5.88 °C | 132 mm |
| December | -2.3 °C | 1.67 °C | 112 mm |
| Annual | 3.4 °C | 7 °C | 1146 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |