Rivière-Rouge, Quebec climate data is summarized below. Average annual temperatures range from -1.7 °C (low) to 8.8 °C (high). Annual precipitation averages 735 Millimeters. Rivière-Rouge is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18.61 °C | -7.87 °C | 0 mm |
| February | -18.43 °C | -7.01 °C | 0 mm |
| March | -11.77 °C | -1.01 °C | 6 mm |
| April | -3.17 °C | 7.34 °C | 65 mm |
| May | 5.1 °C | 17.18 °C | 76 mm |
| June | 10.14 °C | 21.73 °C | 97 mm |
| July | 12.63 °C | 23.83 °C | 139 mm |
| August | 12.07 °C | 22.96 °C | 107 mm |
| September | 7.38 °C | 18.37 °C | 97 mm |
| October | 2.34 °C | 10.85 °C | 103 mm |
| November | -4.08 °C | 3.34 °C | 45 mm |
| December | -13.35 °C | -4.64 °C | 0 mm |
| Annual | -1.7 °C | 8.8 °C | 735 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Normal |