Trail, British Columbia climate data is summarized below. Average annual temperatures range from 36.4 °F (low) to 57.3 °F (high). Annual precipitation averages 3.2 Inches. 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 | -21.7 °F | -17.8 °F | 0 in. |
| February | -20.4 °F | -15.8 °F | 0 in. |
| March | -19 °F | -13.2 °F | 177.8 in. |
| April | -17.2 °F | -10 °F | 152.4 in. |
| May | -14.5 °F | -6.7 °F | 355.6 in. |
| June | -12.6 °F | -4.8 °F | 406.4 in. |
| July | -10.8 °F | -1.4 °F | 457.2 in. |
| August | -11.1 °F | -1.5 °F | 228.6 in. |
| September | -13.5 °F | -5 °F | 152.4 in. |
| October | -16.1 °F | -10.2 °F | 76.2 in. |
| November | -18.8 °F | -15.2 °F | 0 in. |
| December | -21.6 °F | -18 °F | 50.8 in. |
| Annual | 36.4 °F | 57.3 °F | 3.2 in. |
| 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 : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |