Rivière-Rouge, Quebec climate data is summarized below. Average annual temperatures range from 29 °F (low) to 47.8 °F (high). Annual precipitation averages 28.9 Inches. 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 | -28.1 °F | -22.2 °F | 0 in. |
| February | -28 °F | -21.7 °F | 0 in. |
| March | -24.3 °F | -18.3 °F | 152.4 in. |
| April | -19.5 °F | -13.7 °F | 1651 in. |
| May | -14.9 °F | -8.2 °F | 1930.4 in. |
| June | -12.1 °F | -5.7 °F | 2463.8 in. |
| July | -10.8 °F | -4.5 °F | 3530.6 in. |
| August | -11.1 °F | -5 °F | 2717.8 in. |
| September | -13.7 °F | -7.6 °F | 2463.8 in. |
| October | -16.5 °F | -11.8 °F | 2616.2 in. |
| November | -20 °F | -15.9 °F | 1143 in. |
| December | -25.2 °F | -20.4 °F | 0 in. |
| Annual | 29 °F | 47.8 °F | 28.94 in. |
| 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 : -35°F to -30°F |
| Current Drought Conditions | Normal |