Melfort, Saskatchewan climate data is summarized below. Average annual temperatures range from -3.3 °C (low) to 7.1 °C (high). Annual precipitation averages 470 Millimeters. Melfort is located in USDA Plant Hardiness Zone 3a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -19.77 °C | -10.68 °C | 0 mm |
| February | -20.37 °C | -10.1 °C | 0 mm |
| March | -12.66 °C | -2.68 °C | 0 mm |
| April | -3.4 °C | 7.29 °C | 28 mm |
| May | 3.67 °C | 17.38 °C | 40 mm |
| June | 9.77 °C | 21.74 °C | 126 mm |
| July | 12.45 °C | 24.21 °C | 117 mm |
| August | 10.93 °C | 23.79 °C | 67 mm |
| September | 6.26 °C | 18.75 °C | 48 mm |
| October | 0.56 °C | 8.9 °C | 44 mm |
| November | -8.79 °C | -2.11 °C | 0 mm |
| December | -17.86 °C | -10.91 °C | 0 mm |
| Annual | -3.3 °C | 7.1 °C | 470 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3a : -40°C to -37.2°C |
| Current Drought Conditions | Normal |