Atlin, British Columbia climate data is summarized below. Average annual temperatures range from 21.7 °F (low) to 34.5 °F (high). Annual precipitation averages 9.9 Inches. 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 | -26.4 °F | -22.6 °F | 0 in. |
| February | -26.6 °F | -21.9 °F | 0 in. |
| March | -26.7 °F | -21.4 °F | 0 in. |
| April | -22.3 °F | -18 °F | 0 in. |
| May | -18.1 °F | -13.7 °F | 609.6 in. |
| June | -15.7 °F | -10.8 °F | 1016 in. |
| July | -14.6 °F | -10 °F | 1066.8 in. |
| August | -14.9 °F | -10.6 °F | 1092.2 in. |
| September | -17 °F | -14 °F | 1701.8 in. |
| October | -19.1 °F | -17.2 °F | 889 in. |
| November | -23.9 °F | -21.3 °F | 0 in. |
| December | -26.1 °F | -22.7 °F | 0 in. |
| Annual | 21.7 °F | 34.5 °F | 9.87 in. |
| 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 : -45°F to -40°F |
| Current Drought Conditions | Normal |