Bruce Mines, Ontario climate data is summarized below. Average annual temperatures range from 33.9 °F (low) to 48.6 °F (high). Annual precipitation averages 23 Inches. 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 | -25.4 °F | -20.6 °F | 0 in. |
| February | -26.1 °F | -20.5 °F | 0 in. |
| March | -22.7 °F | -17.3 °F | 381 in. |
| April | -18.5 °F | -14 °F | 939.8 in. |
| May | -14.8 °F | -9.8 °F | 1447.8 in. |
| June | -11.8 °F | -6.9 °F | 2082.8 in. |
| July | -10.1 °F | -5.2 °F | 2082.8 in. |
| August | -9.8 °F | -5.3 °F | 2260.6 in. |
| September | -11.9 °F | -7.5 °F | 2133.6 in. |
| October | -14.8 °F | -11.1 °F | 2032 in. |
| November | -18 °F | -14.8 °F | 1092.2 in. |
| December | -22.5 °F | -18.7 °F | 406.4 in. |
| Annual | 33.9 °F | 48.6 °F | 23.03 in. |
| 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 : -20°F to -15°F |
| Current Drought Conditions | Normal |