Rivière-du-Loup, Quebec climate data is summarized below. Average annual temperatures range from 0.4 °C (low) to 7.9 °C (high). Annual precipitation averages 623 Millimeters. 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 | -14.68 °C | -6.7 °C | 0 mm |
| February | -14.29 °C | -6.13 °C | 0 mm |
| March | -9.73 °C | -1.14 °C | 0 mm |
| April | -1.17 °C | 6.24 °C | 43 mm |
| May | 5.2 °C | 14 °C | 64 mm |
| June | 10.2 °C | 18.55 °C | 82 mm |
| July | 13.55 °C | 21.46 °C | 99 mm |
| August | 13.12 °C | 20.95 °C | 92 mm |
| September | 8.95 °C | 16.4 °C | 90 mm |
| October | 3.95 °C | 9.96 °C | 94 mm |
| November | -1.31 °C | 4 °C | 59 mm |
| December | -9.54 °C | -3.44 °C | 0 mm |
| Annual | 0.4 °C | 7.9 °C | 623 mm |
| 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 : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |