Armstrong, British Columbia climate data is summarized below. Average annual temperatures range from 38 °F (low) to 59.2 °F (high). Annual precipitation averages 13.3 Inches. Armstrong is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -21 °F | -17.2 °F | 0 in. |
| February | -20.4 °F | -15.8 °F | 25.4 in. |
| March | -18.8 °F | -13.2 °F | 406.4 in. |
| April | -16.7 °F | -9.8 °F | 635 in. |
| May | -13.5 °F | -5.6 °F | 1244.6 in. |
| June | -11.5 °F | -3.6 °F | 1574.8 in. |
| July | -10.1 °F | -1 °F | 838.2 in. |
| August | -10.7 °F | -1.3 °F | 685.8 in. |
| September | -13.2 °F | -4.7 °F | 965.2 in. |
| October | -15.7 °F | -9.2 °F | 1346.2 in. |
| November | -18.4 °F | -14 °F | 863.6 in. |
| December | -21 °F | -17.3 °F | 0 in. |
| Annual | 38 °F | 59.2 °F | 13.31 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |