Bonnyville, Alberta climate data is summarized below. Average annual temperatures range from -2.6 °C (low) to 8.2 °C (high). Annual precipitation averages 385 Millimeters. Bonnyville is located in USDA Plant Hardiness Zone 3a. 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 | -17.9 °C | -8.51 °C | 0 mm |
| February | -16.98 °C | -6.71 °C | 0 mm |
| March | -10.81 °C | -0.72 °C | 0 mm |
| April | -2.11 °C | 8.74 °C | 31 mm |
| May | 4.4 °C | 17.95 °C | 36 mm |
| June | 9.81 °C | 22.23 °C | 100 mm |
| July | 12.44 °C | 24.85 °C | 102 mm |
| August | 10.73 °C | 23.58 °C | 53 mm |
| September | 5.35 °C | 18.71 °C | 33 mm |
| October | 0.2 °C | 9.57 °C | 30 mm |
| November | -8.77 °C | -1.85 °C | 0 mm |
| December | -17.43 °C | -9.62 °C | 0 mm |
| Annual | -2.6 °C | 8.2 °C | 385 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3a : -40°C to -37.2°C |
| Current Drought Conditions | Normal |