Sainte-Thérèse, Quebec climate data is summarized below. Average annual temperatures range from 36.2 °F (low) to 52.4 °F (high). Annual precipitation averages 33.5 Inches. Sainte-Thérèse is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -25.3 °F | -20.7 °F | 177.8 in. |
| February | -25.1 °F | -20.3 °F | 228.6 in. |
| March | -21.7 °F | -16.5 °F | 939.8 in. |
| April | -17 °F | -11.6 °F | 2235.2 in. |
| May | -13 °F | -7 °F | 2235.2 in. |
| June | -10.1 °F | -4.6 °F | 2946.4 in. |
| July | -8.6 °F | -3.2 °F | 3454.4 in. |
| August | -9 °F | -3.7 °F | 2692.4 in. |
| September | -11.7 °F | -6.2 °F | 1854.2 in. |
| October | -15 °F | -10.4 °F | 2616.2 in. |
| November | -18.4 °F | -14.5 °F | 1498.6 in. |
| December | -22.8 °F | -19 °F | 711.2 in. |
| Annual | 36.2 °F | 52.4 °F | 33.45 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |