Rosswood, British Columbia climate data is summarized below. Average annual temperatures range from 1.3 °C (low) to 7.5 °C (high). Annual precipitation averages 881 Millimeters. Rosswood is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.25 °C | 0.4 °C | 7 mm |
| February | -4.49 °C | 1.02 °C | 11 mm |
| March | -3.5 °C | 2.59 °C | 5 mm |
| April | -0.44 °C | 6.2 °C | 53 mm |
| May | 3.05 °C | 10.84 °C | 69 mm |
| June | 5.72 °C | 12.93 °C | 77 mm |
| July | 8.93 °C | 16.5 °C | 72 mm |
| August | 9.34 °C | 17.55 °C | 86 mm |
| September | 6.56 °C | 13.54 °C | 161 mm |
| October | 2.79 °C | 7.47 °C | 232 mm |
| November | -2.17 °C | 1.9 °C | 93 mm |
| December | -5.91 °C | -1.26 °C | 15 mm |
| Annual | 1.3 °C | 7.5 °C | 881 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |