Metchosin, British Columbia climate data is summarized below. Average annual temperatures range from 44.8 °F (low) to 55.5 °F (high). Annual precipitation averages 59.4 Inches. Metchosin is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -16.3 °F | -14.2 °F | 4851.4 in. |
| February | -15.7 °F | -13.3 °F | 3403.6 in. |
| March | -15.5 °F | -12.7 °F | 4292.6 in. |
| April | -14.8 °F | -11.1 °F | 2413 in. |
| May | -13.4 °F | -9.3 °F | 1854.2 in. |
| June | -12.1 °F | -8 °F | 660.4 in. |
| July | -10.9 °F | -6.1 °F | 406.4 in. |
| August | -10.8 °F | -6.2 °F | 711.2 in. |
| September | -11.7 °F | -8.1 °F | 1955.8 in. |
| October | -13.3 °F | -10.6 °F | 4699 in. |
| November | -15 °F | -12.7 °F | 7137.4 in. |
| December | -16.2 °F | -14.2 °F | 5918.2 in. |
| Annual | 44.8 °F | 55.5 °F | 59.35 in. |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Abnormally Dry |