Shellbrook, Saskatchewan climate data is summarized below. Average annual temperatures range from 25.6 °F (low) to 45.4 °F (high). Annual precipitation averages 16.2 Inches. Shellbrook is located in USDA Plant Hardiness Zone 2b. 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 | -28.7 °F | -23.5 °F | 0 in. |
| February | -28.9 °F | -23 °F | 0 in. |
| March | -24.7 °F | -19 °F | 0 in. |
| April | -19.9 °F | -13.6 °F | 660.4 in. |
| May | -15.9 °F | -8.1 °F | 1168.4 in. |
| June | -12.5 °F | -5.5 °F | 3022.6 in. |
| July | -10.9 °F | -3.9 °F | 2362.2 in. |
| August | -11.9 °F | -4.4 °F | 1447.8 in. |
| September | -14.7 °F | -7.3 °F | 939.8 in. |
| October | -17.8 °F | -12.7 °F | 863.6 in. |
| November | -22.9 °F | -18.9 °F | 0 in. |
| December | -28 °F | -23.9 °F | 0 in. |
| Annual | 25.6 °F | 45.4 °F | 16.22 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 2b : -45°F to -40°F |
| Current Drought Conditions | Normal |