Mossbank, Saskatchewan climate data is summarized below. Average annual temperatures range from 28.7 °F (low) to 49.6 °F (high). Annual precipitation averages 7.1 Inches. Mossbank is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -26.6 °F | -21.4 °F | 0 in. |
| February | -26.9 °F | -21.1 °F | 0 in. |
| March | -22.7 °F | -17 °F | 25.4 in. |
| April | -19 °F | -12.2 °F | 228.6 in. |
| May | -15.4 °F | -8.1 °F | 660.4 in. |
| June | -12.3 °F | -5.6 °F | 1041.4 in. |
| July | -10.9 °F | -3.5 °F | 1270 in. |
| August | -11.6 °F | -3.7 °F | 838.2 in. |
| September | -14.2 °F | -6.4 °F | 355.6 in. |
| October | -17.6 °F | -11.1 °F | 177.8 in. |
| November | -21.9 °F | -16.5 °F | 0 in. |
| December | -26.5 °F | -21.5 °F | 0 in. |
| Annual | 28.7 °F | 49.6 °F | 7.12 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |