Ladysmith, British Columbia climate data is summarized below. Average annual temperatures range from 42.7 °F (low) to 55.4 °F (high). Annual precipitation averages 58.8 Inches. Ladysmith is located in USDA Plant Hardiness Zone 8a. 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 | -17.5 °F | -14.9 °F | 5054.6 in. |
| February | -16.9 °F | -13.9 °F | 3352.8 in. |
| March | -16.6 °F | -13.2 °F | 3860.8 in. |
| April | -15.6 °F | -11.4 °F | 1854.2 in. |
| May | -13.5 °F | -8.9 °F | 1422.4 in. |
| June | -11.9 °F | -7.5 °F | 1143 in. |
| July | -10.3 °F | -5.2 °F | 863.6 in. |
| August | -10.4 °F | -5.3 °F | 1041.4 in. |
| September | -12.1 °F | -7.4 °F | 2159 in. |
| October | -14.4 °F | -10.7 °F | 5842 in. |
| November | -16.5 °F | -13.3 °F | 6604 in. |
| December | -17.9 °F | -15.2 °F | 4749.8 in. |
| Annual | 42.7 °F | 55.4 °F | 58.81 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Moderate Drought |