Trail, British Columbia climate data is summarized below. Average annual temperatures range from 2.4 °C (low) to 14.1 °C (high). Annual precipitation averages 81 Millimeters. Trail is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7 °C | -0.12 °C | 0 mm |
| February | -4.76 °C | 3.5 °C | 0 mm |
| March | -2.23 °C | 8.21 °C | 7 mm |
| April | 1.08 °C | 13.95 °C | 6 mm |
| May | 5.97 °C | 19.98 °C | 14 mm |
| June | 9.39 °C | 23.28 °C | 16 mm |
| July | 12.55 °C | 29.45 °C | 18 mm |
| August | 11.98 °C | 29.26 °C | 9 mm |
| September | 7.7 °C | 23.02 °C | 6 mm |
| October | 3 °C | 13.71 °C | 3 mm |
| November | -1.8 °C | 4.62 °C | 0 mm |
| December | -6.81 °C | -0.33 °C | 2 mm |
| Annual | 2.4 °C | 14.1 °C | 81 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |