Mont-Joli, Quebec climate data is summarized below. Average annual temperatures range from 32.7 °F (low) to 46.3 °F (high). Annual precipitation averages 29 Inches. Mont-Joli is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -25.5 °F | -21.5 °F | 0 in. |
| February | -25.2 °F | -21.2 °F | 0 in. |
| March | -23.3 °F | -18.7 °F | 0 in. |
| April | -18.6 °F | -14.6 °F | 1295.4 in. |
| May | -15.1 °F | -10.2 °F | 1930.4 in. |
| June | -12.2 °F | -7.2 °F | 2844.8 in. |
| July | -10.1 °F | -5.3 °F | 2794 in. |
| August | -10.4 °F | -5.7 °F | 2616.2 in. |
| September | -12.9 °F | -8.4 °F | 2616.2 in. |
| October | -15.8 °F | -12.2 °F | 2590.8 in. |
| November | -18.7 °F | -15.6 °F | 1854.2 in. |
| December | -23.1 °F | -19.6 °F | 152.4 in. |
| Annual | 32.7 °F | 46.3 °F | 28.99 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |