Colonsay, Saskatchewan climate data is summarized below. Average annual temperatures range from 26.5 °F (low) to 46.3 °F (high). Annual precipitation averages 17.8 Inches. Colonsay is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -28.4 °F | -23 °F | 0 in. |
| February | -28.7 °F | -23 °F | 0 in. |
| March | -24.3 °F | -18.8 °F | 0 in. |
| April | -19.3 °F | -13 °F | 609.6 in. |
| May | -15.5 °F | -7.8 °F | 1524 in. |
| June | -12.2 °F | -5.6 °F | 3175 in. |
| July | -10.7 °F | -4.1 °F | 2667 in. |
| August | -11.7 °F | -4.6 °F | 1498.6 in. |
| September | -14.5 °F | -7.1 °F | 1143 in. |
| October | -17.9 °F | -12.2 °F | 889 in. |
| November | -22.8 °F | -18.1 °F | 0 in. |
| December | -27.8 °F | -23.3 °F | 0 in. |
| Annual | 26.5 °F | 46.3 °F | 17.82 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Normal |