Donnacona, Quebec climate data is summarized below. Average annual temperatures range from 32.8 °F (low) to 50.4 °F (high). Annual precipitation averages 38.2 Inches. Donnacona 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -26.5 °F | -21.2 °F | 0 in. |
| February | -26.1 °F | -20.6 °F | 0 in. |
| March | -23.2 °F | -17.6 °F | 482.6 in. |
| April | -18.2 °F | -12.5 °F | 1905 in. |
| May | -14.3 °F | -7.7 °F | 2438.4 in. |
| June | -11.3 °F | -5.1 °F | 3378.2 in. |
| July | -9.7 °F | -3.7 °F | 4368.8 in. |
| August | -10.1 °F | -4.2 °F | 3632.2 in. |
| September | -12.8 °F | -6.9 °F | 2946.4 in. |
| October | -15.7 °F | -11 °F | 3200.4 in. |
| November | -18.9 °F | -15 °F | 1828.8 in. |
| December | -23.6 °F | -19.6 °F | 482.6 in. |
| Annual | 32.8 °F | 50.4 °F | 38.23 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |