Souris, Prince Edward Island climate data is summarized below. Average annual temperatures range from 38.5 °F (low) to 49.5 °F (high). Annual precipitation averages 43.3 Inches. 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 | -22.1 °F | -18.8 °F | 965.2 in. |
| February | -22.6 °F | -19 °F | 889 in. |
| March | -21.3 °F | -17.8 °F | 1016 in. |
| April | -17.9 °F | -14.7 °F | 1803.4 in. |
| May | -15 °F | -11.2 °F | 2489.2 in. |
| June | -12.1 °F | -8.4 °F | 2540 in. |
| July | -9.1 °F | -5.1 °F | 2870.2 in. |
| August | -8.8 °F | -5.2 °F | 3606.8 in. |
| September | -10.9 °F | -7.4 °F | 3352.8 in. |
| October | -13.7 °F | -10.6 °F | 2641.6 in. |
| November | -16.4 °F | -13.7 °F | 3022.6 in. |
| December | -19.4 °F | -16.6 °F | 2743.2 in. |
| Annual | 38.5 °F | 49.5 °F | 43.32 in. |
| 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 : -10°F to -5°F |
| Current Drought Conditions | Normal |