Labrador City, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from -7.8 °C (low) to 1.4 °C (high). Annual precipitation averages 561 Millimeters. Labrador City is located in USDA Plant Hardiness Zone 1a. The growing season typically runs from the last frost around Jun. 11 - Jun. 20 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -25.72 °C | -16.08 °C | 0 mm |
| February | -25.73 °C | -14.13 °C | 0 mm |
| March | -21.93 °C | -8.68 °C | 0 mm |
| April | -11.3 °C | -0.65 °C | 0 mm |
| May | -2.67 °C | 6.1 °C | 64 mm |
| June | 5.51 °C | 15.54 °C | 91 mm |
| July | 9.27 °C | 18.43 °C | 130 mm |
| August | 8.98 °C | 17.59 °C | 122 mm |
| September | 3.12 °C | 11.21 °C | 104 mm |
| October | -1.73 °C | 4.22 °C | 50 mm |
| November | -10.14 °C | -3.88 °C | 0 mm |
| December | -21.45 °C | -12.66 °C | 0 mm |
| Annual | -7.8 °C | 1.4 °C | 561 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 11 - Jun. 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 1a : |
| Current Drought Conditions | Moderate Drought |