Langley, British Columbia climate data is summarized below. Average annual temperatures range from 6.1 °C (low) to 14.7 °C (high). Annual precipitation averages 577 Millimeters. 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 | 0.27 °C | 5.72 °C | 81 mm |
| February | 1.8 °C | 8.54 °C | 56 mm |
| March | 2.89 °C | 10.47 °C | 81 mm |
| April | 4.68 °C | 14.25 °C | 39 mm |
| May | 8.06 °C | 18.49 °C | 28 mm |
| June | 10.63 °C | 20.38 °C | 26 mm |
| July | 12.63 °C | 24.43 °C | 20 mm |
| August | 12.61 °C | 24.49 °C | 16 mm |
| September | 9.91 °C | 20.72 °C | 36 mm |
| October | 6.56 °C | 14.58 °C | 74 mm |
| November | 2.82 °C | 8.99 °C | 75 mm |
| December | 0.43 °C | 5.27 °C | 45 mm |
| Annual | 6.1 °C | 14.7 °C | 577 mm |
| 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 : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |