Mossbank, Saskatchewan climate data is summarized below. Average annual temperatures range from -1.8 °C (low) to 9.8 °C (high). Annual precipitation averages 181 Millimeters. 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 | -15.94 °C | -6.5 °C | 0 mm |
| February | -16.4 °C | -5.93 °C | 0 mm |
| March | -8.79 °C | 1.38 °C | 1 mm |
| April | -2.23 °C | 9.96 °C | 9 mm |
| May | 4.33 °C | 17.38 °C | 26 mm |
| June | 9.95 °C | 21.86 °C | 41 mm |
| July | 12.45 °C | 25.73 °C | 50 mm |
| August | 11.18 °C | 25.3 °C | 33 mm |
| September | 6.38 °C | 20.48 °C | 14 mm |
| October | 0.33 °C | 12 °C | 7 mm |
| November | -7.46 °C | 2.35 °C | 0 mm |
| December | -15.72 °C | -6.71 °C | 0 mm |
| Annual | -1.8 °C | 9.8 °C | 181 mm |
| 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 : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |