Prince Edward County, Ontario climate data is summarized below. Average annual temperatures range from 3.9 °C (low) to 12.9 °C (high). Annual precipitation averages 565 Millimeters. Prince Edward County is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.41 °C | -1.41 °C | 14 mm |
| February | -10.8 °C | -1.86 °C | 6 mm |
| March | -4.61 °C | 4.58 °C | 34 mm |
| April | 2.25 °C | 12 °C | 61 mm |
| May | 8.43 °C | 19.33 °C | 58 mm |
| June | 13.74 °C | 23.67 °C | 72 mm |
| July | 16.64 °C | 26.33 °C | 99 mm |
| August | 16.27 °C | 25.59 °C | 72 mm |
| September | 11.89 °C | 21.37 °C | 39 mm |
| October | 6.49 °C | 14.66 °C | 50 mm |
| November | 0.52 °C | 8.31 °C | 35 mm |
| December | -5.12 °C | 1.76 °C | 25 mm |
| Annual | 3.9 °C | 12.9 °C | 565 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |