Klemtu, British Columbia climate data is summarized below. Average annual temperatures range from 41.1 °F (low) to 50.6 °F (high). Annual precipitation averages 145 Inches. Klemtu is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.4 °F | -15.3 °F | 10363.2 in. |
| February | -17.2 °F | -14.6 °F | 8661.4 in. |
| March | -16.9 °F | -14.2 °F | 9042.4 in. |
| April | -16 °F | -12.7 °F | 6781.8 in. |
| May | -14.4 °F | -10.6 °F | 3581.4 in. |
| June | -13 °F | -9.8 °F | 4241.8 in. |
| July | -11.7 °F | -8.2 °F | 3251.2 in. |
| August | -11.6 °F | -7.9 °F | 4114.8 in. |
| September | -12.7 °F | -9.5 °F | 7696.2 in. |
| October | -14.3 °F | -11.9 °F | 12750.8 in. |
| November | -16.3 °F | -14.1 °F | 12293.6 in. |
| December | -17.8 °F | -15.6 °F | 10769.6 in. |
| Annual | 41.1 °F | 50.6 °F | 145 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Normal |