Varennes, Quebec climate data is summarized below. Average annual temperatures range from 2.8 °C (low) to 11.6 °C (high). Annual precipitation averages 906 Millimeters. Varennes is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.7 °C | -4.86 °C | 12 mm |
| February | -12.21 °C | -4.2 °C | 15 mm |
| March | -6.4 °C | 2.25 °C | 42 mm |
| April | 1.79 °C | 11.6 °C | 97 mm |
| May | 8.81 °C | 19.48 °C | 96 mm |
| June | 14.04 °C | 23.94 °C | 122 mm |
| July | 16.8 °C | 26.42 °C | 127 mm |
| August | 15.96 °C | 25.54 °C | 109 mm |
| September | 11.11 °C | 21.05 °C | 76 mm |
| October | 5.25 °C | 13.34 °C | 103 mm |
| November | -0.87 °C | 6.19 °C | 69 mm |
| December | -8.33 °C | -1.91 °C | 38 mm |
| Annual | 2.8 °C | 11.6 °C | 906 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |