Schefferville, Quebec climate data is summarized below. Average annual temperatures range from 15.9 °F (low) to 31.9 °F (high). Annual precipitation averages 17.6 Inches. 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 | -32.8 °F | -27.8 °F | 0 in. |
| February | -33 °F | -26.9 °F | 0 in. |
| March | -31 °F | -23.8 °F | 0 in. |
| April | -25 °F | -18.9 °F | 0 in. |
| May | -20 °F | -15.2 °F | 965.2 in. |
| June | -15.2 °F | -9.8 °F | 2159 in. |
| July | -12.8 °F | -8 °F | 2667 in. |
| August | -13 °F | -8.5 °F | 2438.4 in. |
| September | -16.5 °F | -12.4 °F | 2286 in. |
| October | -19.2 °F | -16.2 °F | 812.8 in. |
| November | -24.2 °F | -20.6 °F | 0 in. |
| December | -30.1 °F | -25.7 °F | 0 in. |
| Annual | 15.9 °F | 31.9 °F | 17.56 in. |
| 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 |