Bécancour, Quebec climate data is summarized below. Average annual temperatures range from 1.6 °C (low) to 10.7 °C (high). Annual precipitation averages 163 Millimeters. Bécancour 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 | -14.68 °C | -5.61 °C | 0 mm |
| February | -14.19 °C | -4.74 °C | 0 mm |
| March | -8.41 °C | 1.22 °C | 5 mm |
| April | 0.65 °C | 10.56 °C | 19 mm |
| May | 7.55 °C | 18.37 °C | 13 mm |
| June | 12.78 °C | 22.87 °C | 22 mm |
| July | 15.77 °C | 25.29 °C | 36 mm |
| August | 15.04 °C | 24.52 °C | 19 mm |
| September | 10.18 °C | 19.99 °C | 14 mm |
| October | 4.76 °C | 12.65 °C | 21 mm |
| November | -1.18 °C | 5.58 °C | 10 mm |
| December | -9.48 °C | -2.71 °C | 4 mm |
| Annual | 1.6 °C | 10.7 °C | 163 mm |
| 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 : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |