Atlin, British Columbia climate data is summarized below. Average annual temperatures range from -5.7 °C (low) to 1.4 °C (high). Annual precipitation averages 251 Millimeters. Atlin is located in USDA Plant Hardiness Zone 2b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.54 °C | -8.61 °C | 0 mm |
| February | -15.89 °C | -7.37 °C | 0 mm |
| March | -16 °C | -6.57 °C | 0 mm |
| April | -8.17 °C | -0.45 °C | 0 mm |
| May | -0.6 °C | 7.28 °C | 24 mm |
| June | 3.82 °C | 12.64 °C | 40 mm |
| July | 5.78 °C | 14.07 °C | 42 mm |
| August | 5.22 °C | 12.91 °C | 43 mm |
| September | 1.38 °C | 6.83 °C | 67 mm |
| October | -2.46 °C | 1.04 °C | 35 mm |
| November | -11.07 °C | -6.25 °C | 0 mm |
| December | -15.03 °C | -8.77 °C | 0 mm |
| Annual | -5.7 °C | 1.4 °C | 251 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 2b : -42.8°C to -40°C |
| Current Drought Conditions | Normal |