Rimouski, Quebec climate data is summarized below. Average annual temperatures range from 32.8 °F (low) to 46.7 °F (high). Annual precipitation averages 27.8 Inches. Rimouski is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -25.4 °F | -21.4 °F | 0 in. |
| February | -24.9 °F | -20.9 °F | 0 in. |
| March | -23 °F | -18.5 °F | 0 in. |
| April | -18.6 °F | -14.6 °F | 1397 in. |
| May | -15.1 °F | -10.2 °F | 1828.8 in. |
| June | -12.3 °F | -7 °F | 2641.6 in. |
| July | -10.2 °F | -5.3 °F | 2692.4 in. |
| August | -10.5 °F | -5.7 °F | 2413 in. |
| September | -12.9 °F | -8.3 °F | 2489.2 in. |
| October | -15.7 °F | -12.1 °F | 2489.2 in. |
| November | -18.7 °F | -15.5 °F | 1803.4 in. |
| December | -23 °F | -19.5 °F | 152.4 in. |
| Annual | 32.8 °F | 46.7 °F | 27.76 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |