Cumberland, British Columbia climate data is summarized below. Average annual temperatures range from 41.6 °F (low) to 55 °F (high). Annual precipitation averages 70.4 Inches. Cumberland is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.9 °F | -15.4 °F | 5994.4 in. |
| February | -17.6 °F | -14.7 °F | 4699 in. |
| March | -17.4 °F | -13.9 °F | 5791.2 in. |
| April | -16.1 °F | -11.6 °F | 2514.6 in. |
| May | -13.7 °F | -8.6 °F | 1676.4 in. |
| June | -12.1 °F | -7.2 °F | 1270 in. |
| July | -10.4 °F | -4.6 °F | 812.8 in. |
| August | -10.4 °F | -4.7 °F | 939.8 in. |
| September | -12.3 °F | -7.2 °F | 2082.8 in. |
| October | -14.6 °F | -10.8 °F | 6070.6 in. |
| November | -17 °F | -13.8 °F | 7264.4 in. |
| December | -18.2 °F | -15.7 °F | 6273.8 in. |
| Annual | 41.6 °F | 55 °F | 70.36 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |