Souris, Prince Edward Island climate data is summarized below. Average annual temperatures range from 3.6 °C (low) to 9.7 °C (high). Annual precipitation averages 1100 Millimeters. Souris is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.69 °C | -1.83 °C | 38 mm |
| February | -8.6 °C | -2.22 °C | 35 mm |
| March | -6.29 °C | 0.01 °C | 40 mm |
| April | -0.15 °C | 5.54 °C | 71 mm |
| May | 4.93 °C | 11.8 °C | 98 mm |
| June | 10.19 °C | 16.95 °C | 100 mm |
| July | 15.54 °C | 22.79 °C | 113 mm |
| August | 16.11 °C | 22.66 °C | 142 mm |
| September | 12.31 °C | 18.66 °C | 132 mm |
| October | 7.42 °C | 12.91 °C | 104 mm |
| November | 2.45 °C | 7.31 °C | 119 mm |
| December | -2.92 °C | 2.14 °C | 108 mm |
| Annual | 3.6 °C | 9.7 °C | 1100 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |