Bruce Mines, Ontario climate data is summarized below. Average annual temperatures range from 1 °C (low) to 9.2 °C (high). Annual precipitation averages 585 Millimeters. Bruce Mines is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -13.67 °C | -5.08 °C | 0 mm |
| February | -15 °C | -4.93 °C | 0 mm |
| March | -8.93 °C | 0.78 °C | 15 mm |
| April | -1.3 °C | 6.83 °C | 37 mm |
| May | 5.43 °C | 14.3 °C | 57 mm |
| June | 10.69 °C | 19.54 °C | 82 mm |
| July | 13.89 °C | 22.63 °C | 82 mm |
| August | 14.41 °C | 22.51 °C | 89 mm |
| September | 10.5 °C | 18.43 °C | 84 mm |
| October | 5.38 °C | 11.95 °C | 80 mm |
| November | -0.38 °C | 5.42 °C | 43 mm |
| December | -8.48 °C | -1.74 °C | 16 mm |
| Annual | 1 °C | 9.2 °C | 585 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |