Schefferville, Quebec climate data is summarized below. Average annual temperatures range from -8.9 °C (low) to -0.1 °C (high). Annual precipitation averages 446 Millimeters. Schefferville is located in USDA Plant Hardiness Zone 0b. 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 | -26.98 °C | -18.12 °C | 0 mm |
| February | -27.34 °C | -16.38 °C | 0 mm |
| March | -23.87 °C | -10.89 °C | 0 mm |
| April | -13.02 °C | -2.02 °C | 0 mm |
| May | -3.92 °C | 4.61 °C | 38 mm |
| June | 4.64 °C | 14.37 °C | 85 mm |
| July | 8.89 °C | 17.59 °C | 105 mm |
| August | 8.58 °C | 16.7 °C | 96 mm |
| September | 2.25 °C | 9.73 °C | 90 mm |
| October | -2.59 °C | 2.88 °C | 32 mm |
| November | -11.51 °C | -5.12 °C | 0 mm |
| December | -22.21 °C | -14.18 °C | 0 mm |
| Annual | -8.9 °C | -0.1 °C | 446 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 | |
| Current Drought Conditions | Severe Drought |