Nelson, British Columbia climate data is summarized below. Average annual temperatures range from 0.5 °C (low) to 13.9 °C (high). Annual precipitation averages 45 Millimeters. Nelson is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.46 °C | 1.12 °C | 0 mm |
| February | -7.55 °C | 4.49 °C | 0 mm |
| March | -5.66 °C | 7.93 °C | 7 mm |
| April | -2.5 °C | 11.72 °C | 5 mm |
| May | 3.23 °C | 17.17 °C | 7 mm |
| June | 8.16 °C | 23.4 °C | 5 mm |
| July | 11.72 °C | 28.75 °C | 13 mm |
| August | 10.86 °C | 28.36 °C | 3 mm |
| September | 6.7 °C | 23.01 °C | 2 mm |
| October | 2.12 °C | 14.65 °C | 2 mm |
| November | -4.03 °C | 5.37 °C | 0 mm |
| December | -8.8 °C | 0.21 °C | 1 mm |
| Annual | 0.5 °C | 13.9 °C | 45 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |