Melville, Saskatchewan climate data is summarized below. Average annual temperatures range from 27.2 °F (low) to 46.3 °F (high). Annual precipitation averages 18 Inches. Melville is located in USDA Plant Hardiness Zone 3b. 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 | -28.2 °F | -23.2 °F | 0 in. |
| February | -28.4 °F | -22.9 °F | 0 in. |
| March | -24.1 °F | -18.4 °F | 0 in. |
| April | -19.1 °F | -12.9 °F | 685.8 in. |
| May | -15.3 °F | -8.4 °F | 1422.4 in. |
| June | -12.1 °F | -5.8 °F | 3200.4 in. |
| July | -10.6 °F | -4.2 °F | 2413 in. |
| August | -11.4 °F | -4.6 °F | 1803.4 in. |
| September | -14.2 °F | -7.1 °F | 1270 in. |
| October | -17.5 °F | -12 °F | 812.8 in. |
| November | -22.5 °F | -17.9 °F | 0 in. |
| December | -27.6 °F | -23.2 °F | 0 in. |
| Annual | 27.2 °F | 46.3 °F | 17.99 in. |
| 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 3b : -35°F to -30°F |
| Current Drought Conditions | Normal |