Sainte-Croix, Quebec climate data is summarized below. Average annual temperatures range from 0.6 °C (low) to 10.5 °C (high). Annual precipitation averages 950 Millimeters. Sainte-Croix is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.52 °C | -5.94 °C | 0 mm |
| February | -14.89 °C | -4.98 °C | 0 mm |
| March | -9.7 °C | 0.38 °C | 19 mm |
| April | -0.47 °C | 9.88 °C | 73 mm |
| May | 6.3 °C | 18.53 °C | 95 mm |
| June | 11.68 °C | 23.06 °C | 132 mm |
| July | 14.6 °C | 25.61 °C | 169 mm |
| August | 13.91 °C | 24.65 °C | 138 mm |
| September | 9.09 °C | 19.89 °C | 115 mm |
| October | 3.81 °C | 12.43 °C | 123 mm |
| November | -1.87 °C | 5.33 °C | 68 mm |
| December | -10.25 °C | -3.06 °C | 18 mm |
| Annual | 0.6 °C | 10.5 °C | 950 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |