Rosetown, Saskatchewan climate data is summarized below. Average annual temperatures range from -3.2 °C (low) to 9 °C (high). Annual precipitation averages 459 Millimeters. Rosetown 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. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18.1 °C | -7.81 °C | 0 mm |
| February | -18.54 °C | -7.54 °C | 0 mm |
| March | -11.1 °C | -0.11 °C | 0 mm |
| April | -2.77 °C | 10.16 °C | 24 mm |
| May | 3.58 °C | 18.27 °C | 57 mm |
| June | 9.48 °C | 21.89 °C | 140 mm |
| July | 11.72 °C | 24.8 °C | 96 mm |
| August | 10.14 °C | 24.36 °C | 70 mm |
| September | 5.18 °C | 20.31 °C | 38 mm |
| October | -1.14 °C | 11.6 °C | 34 mm |
| November | -9.3 °C | 0.74 °C | 0 mm |
| December | -18.04 °C | -8.65 °C | 0 mm |
| Annual | -3.2 °C | 9 °C | 459 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 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Normal |