Colleymount, British Columbia climate data is summarized below. Average annual temperatures range from 27.5 °F (low) to 42.5 °F (high). Annual precipitation averages 13.2 Inches. Colleymount is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -23.7 °F | -19.9 °F | 0 in. |
| February | -23.8 °F | -19.1 °F | 0 in. |
| March | -22.7 °F | -17.8 °F | 0 in. |
| April | -20.7 °F | -15.9 °F | 787.4 in. |
| May | -17.3 °F | -11.6 °F | 1117.6 in. |
| June | -15.3 °F | -9.9 °F | 1574.8 in. |
| July | -13.8 °F | -8 °F | 1320.8 in. |
| August | -14.1 °F | -8 °F | 1041.4 in. |
| September | -16 °F | -10.8 °F | 1066.8 in. |
| October | -18.1 °F | -14.7 °F | 1422.4 in. |
| November | -21.1 °F | -18.3 °F | 203.2 in. |
| December | -23.7 °F | -20.4 °F | 0 in. |
| Annual | 27.5 °F | 42.5 °F | 13.21 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Abnormally Dry |