Collingwood, Ontario climate data is summarized below. Average annual temperatures range from 3.7 °C (low) to 11.4 °C (high). Annual precipitation averages 291 Millimeters. 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 | -8.43 °C | -1.94 °C | 3 mm |
| February | -9.93 °C | -2.93 °C | 0 mm |
| March | -4.66 °C | 2.92 °C | 9 mm |
| April | 1.22 °C | 9.88 °C | 22 mm |
| May | 7.2 °C | 16.47 °C | 34 mm |
| June | 12.46 °C | 21.24 °C | 46 mm |
| July | 15.86 °C | 24.36 °C | 63 mm |
| August | 15.58 °C | 24.01 °C | 53 mm |
| September | 11.73 °C | 20.37 °C | 29 mm |
| October | 6.58 °C | 13.88 °C | 19 mm |
| November | 0.8 °C | 7.47 °C | 10 mm |
| December | -4.66 °C | 0.87 °C | 3 mm |
| Annual | 3.7 °C | 11.4 °C | 291 mm |
| 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 : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |