Collingwood, Ontario climate data is summarized below. Average annual temperatures range from 38.5 °F (low) to 52.5 °F (high). Annual precipitation averages 11.5 Inches. Collingwood is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -22.5 °F | -18.9 °F | 76.2 in. |
| February | -23.3 °F | -19.4 °F | 0 in. |
| March | -20.4 °F | -16.2 °F | 228.6 in. |
| April | -17.1 °F | -12.3 °F | 558.8 in. |
| May | -13.8 °F | -8.6 °F | 863.6 in. |
| June | -10.9 °F | -6 °F | 1168.4 in. |
| July | -9 °F | -4.2 °F | 1600.2 in. |
| August | -9.1 °F | -4.4 °F | 1346.2 in. |
| September | -11.3 °F | -6.5 °F | 736.6 in. |
| October | -14.1 °F | -10.1 °F | 482.6 in. |
| November | -17.3 °F | -13.6 °F | 254 in. |
| December | -20.4 °F | -17.3 °F | 76.2 in. |
| Annual | 38.5 °F | 52.5 °F | 11.46 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |