Agassiz, British Columbia climate data is summarized below. Average annual temperatures range from 44.6 °F (low) to 60.8 °F (high). Annual precipitation averages 39.7 Inches. Agassiz is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.5 °F | -14.7 °F | 2768.6 in. |
| February | -16.7 °F | -13.2 °F | 1930.4 in. |
| March | -16.1 °F | -11.6 °F | 2616.2 in. |
| April | -14.8 °F | -9.2 °F | 1168.4 in. |
| May | -12.6 °F | -6.5 °F | 1016 in. |
| June | -11.3 °F | -5.2 °F | 1016 in. |
| July | -10 °F | -2.7 °F | 1143 in. |
| August | -10 °F | -2.7 °F | 1143 in. |
| September | -11.3 °F | -4.8 °F | 1803.4 in. |
| October | -13.4 °F | -8.7 °F | 3708.4 in. |
| November | -15.7 °F | -12.6 °F | 4521.2 in. |
| December | -17.5 °F | -14.9 °F | 2794 in. |
| Annual | 44.6 °F | 60.8 °F | 39.72 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |