Shawinigan, Quebec climate data is summarized below. Average annual temperatures range from 33 °F (low) to 49.6 °F (high). Annual precipitation averages 11.8 Inches. Shawinigan 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 Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -26.5 °F | -21.5 °F | 0 in. |
| February | -26 °F | -20.8 °F | 0 in. |
| March | -22.8 °F | -17.5 °F | 152.4 in. |
| April | -18.3 °F | -12.9 °F | 558.8 in. |
| May | -14.1 °F | -7.9 °F | 508 in. |
| June | -11.2 °F | -5.4 °F | 1117.6 in. |
| July | -9.6 °F | -4 °F | 1905 in. |
| August | -10 °F | -4.5 °F | 1346.2 in. |
| September | -12.7 °F | -7.1 °F | 838.2 in. |
| October | -15.7 °F | -11.3 °F | 762 in. |
| November | -19.1 °F | -15.3 °F | 330.2 in. |
| December | -23.8 °F | -19.9 °F | 101.6 in. |
| Annual | 33 °F | 49.6 °F | 11.82 in. |
| Average First Frost Date | Sep.11 - Sep. 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 |