Lark Harbour, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 2.3 °C (low) to 6.1 °C (high). Annual precipitation averages 893 Millimeters. Lark Harbour is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.42 °C | -2.93 °C | 29 mm |
| February | -7.99 °C | -3.63 °C | 18 mm |
| March | -6.52 °C | -2.29 °C | 36 mm |
| April | -1.98 °C | 1.49 °C | 57 mm |
| May | 2.86 °C | 6.59 °C | 78 mm |
| June | 7.93 °C | 11.68 °C | 64 mm |
| July | 12.68 °C | 16.43 °C | 92 mm |
| August | 14.27 °C | 17.81 °C | 107 mm |
| September | 10.73 °C | 14.25 °C | 121 mm |
| October | 5.92 °C | 9.09 °C | 114 mm |
| November | 0.96 °C | 4.5 °C | 107 mm |
| December | -3.98 °C | -0.02 °C | 70 mm |
| Annual | 2.3 °C | 6.1 °C | 893 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |