Langley, British Columbia climate data is summarized below. Average annual temperatures range from 43 °F (low) to 58.5 °F (high). Annual precipitation averages 22.7 Inches. Langley 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.6 °F | -14.6 °F | 2057.4 in. |
| February | -16.8 °F | -13 °F | 1422.4 in. |
| March | -16.2 °F | -12 °F | 2057.4 in. |
| April | -15.2 °F | -9.9 °F | 990.6 in. |
| May | -13.3 °F | -7.5 °F | 711.2 in. |
| June | -11.9 °F | -6.5 °F | 660.4 in. |
| July | -10.8 °F | -4.2 °F | 508 in. |
| August | -10.8 °F | -4.2 °F | 406.4 in. |
| September | -12.3 °F | -6.3 °F | 914.4 in. |
| October | -14.1 °F | -9.7 °F | 1879.6 in. |
| November | -16.2 °F | -12.8 °F | 1905 in. |
| December | -17.5 °F | -14.9 °F | 1143 in. |
| Annual | 43 °F | 58.5 °F | 22.71 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |