Timmins, Ontario climate data is summarized below. Average annual temperatures range from 26.3 °F (low) to 46.3 °F (high). Annual precipitation averages 25.2 Inches. Timmins is located in USDA Plant Hardiness Zone 3a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -29.2 °F | -23.3 °F | 0 in. |
| February | -29.4 °F | -22.7 °F | 0 in. |
| March | -25.1 °F | -18.1 °F | 0 in. |
| April | -20.3 °F | -14 °F | 711.2 in. |
| May | -16 °F | -8.6 °F | 2235.2 in. |
| June | -12.9 °F | -5.5 °F | 2209.8 in. |
| July | -11.3 °F | -4.7 °F | 2895.6 in. |
| August | -11.7 °F | -5.2 °F | 2717.8 in. |
| September | -14.3 °F | -7.9 °F | 2717.8 in. |
| October | -17.3 °F | -12.4 °F | 2235.2 in. |
| November | -20.8 °F | -16.6 °F | 508 in. |
| December | -26.3 °F | -21.6 °F | 0 in. |
| Annual | 26.3 °F | 46.3 °F | 25.15 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3a : -40°F to -35°F |
| Current Drought Conditions | Normal |