Rivière-du-Loup, Quebec climate data is summarized below. Average annual temperatures range from 32.6 °F (low) to 46.1 °F (high). Annual precipitation averages 24.5 Inches. Rivière-du-Loup is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -25.9 °F | -21.5 °F | 0 in. |
| February | -25.7 °F | -21.2 °F | 0 in. |
| March | -23.2 °F | -18.4 °F | 0 in. |
| April | -18.4 °F | -14.3 °F | 1092.2 in. |
| May | -14.9 °F | -10 °F | 1625.6 in. |
| June | -12.1 °F | -7.5 °F | 2082.8 in. |
| July | -10.3 °F | -5.9 °F | 2514.6 in. |
| August | -10.5 °F | -6.1 °F | 2336.8 in. |
| September | -12.8 °F | -8.7 °F | 2286 in. |
| October | -15.6 °F | -12.2 °F | 2387.6 in. |
| November | -18.5 °F | -15.6 °F | 1498.6 in. |
| December | -23.1 °F | -19.7 °F | 0 in. |
| Annual | 32.6 °F | 46.1 °F | 24.52 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |