Rockglen, Saskatchewan climate data is summarized below. Average annual temperatures range from -1.4 °C (low) to 9.8 °C (high). Annual precipitation averages 456 Millimeters. Rockglen is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.64 °C | -5.57 °C | 0 mm |
| February | -14.56 °C | -4.78 °C | 0 mm |
| March | -7.75 °C | 2.72 °C | 4 mm |
| April | -1.88 °C | 9.88 °C | 29 mm |
| May | 4.15 °C | 16.24 °C | 87 mm |
| June | 9.29 °C | 20.77 °C | 124 mm |
| July | 12.34 °C | 25.45 °C | 73 mm |
| August | 11.5 °C | 24.95 °C | 65 mm |
| September | 6.5 °C | 19.73 °C | 44 mm |
| October | 0.31 °C | 11.56 °C | 26 mm |
| November | -7.02 °C | 2.64 °C | 4 mm |
| December | -14.54 °C | -6.07 °C | 0 mm |
| Annual | -1.4 °C | 9.8 °C | 456 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |