Loretteville, Quebec climate data is summarized below. Average annual temperatures range from 0.7 °C (low) to 9.8 °C (high). Annual precipitation averages 917 Millimeters. Loretteville is located in USDA Plant Hardiness Zone 5a. 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 | -15.34 °C | -6.35 °C | 0 mm |
| February | -14.4 °C | -5.29 °C | 0 mm |
| March | -8.79 °C | 0.45 °C | 11 mm |
| April | -0.42 °C | 8.88 °C | 65 mm |
| May | 6.38 °C | 17.3 °C | 94 mm |
| June | 11.65 °C | 22.03 °C | 124 mm |
| July | 14.7 °C | 24.75 °C | 158 mm |
| August | 14 °C | 23.83 °C | 139 mm |
| September | 9.11 °C | 19.02 °C | 116 mm |
| October | 3.63 °C | 11.43 °C | 126 mm |
| November | -2.16 °C | 4.5 °C | 72 mm |
| December | -10.4 °C | -3.41 °C | 12 mm |
| Annual | 0.7 °C | 9.8 °C | 917 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 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |