Rosswood, British Columbia climate data is summarized below. Average annual temperatures range from 34.4 °F (low) to 45.5 °F (high). Annual precipitation averages 34.7 Inches. 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 | -20.1 °F | -17.6 °F | 177.8 in. |
| February | -20.3 °F | -17.2 °F | 279.4 in. |
| March | -19.7 °F | -16.3 °F | 127 in. |
| April | -18 °F | -14.3 °F | 1346.2 in. |
| May | -16.1 °F | -11.8 °F | 1752.6 in. |
| June | -14.6 °F | -10.6 °F | 1955.8 in. |
| July | -12.8 °F | -8.6 °F | 1828.8 in. |
| August | -12.6 °F | -8 °F | 2184.4 in. |
| September | -14.1 °F | -10.3 °F | 4089.4 in. |
| October | -16.2 °F | -13.6 °F | 5892.8 in. |
| November | -19 °F | -16.7 °F | 2362.2 in. |
| December | -21.1 °F | -18.5 °F | 381 in. |
| Annual | 34.4 °F | 45.5 °F | 34.69 in. |
| 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 : 0°F to 5°F |
| Current Drought Conditions | Normal |