New Richmond, Quebec climate data is summarized below. Average annual temperatures range from 0.2 °C (low) to 8.5 °C (high). Annual precipitation averages 779 Millimeters. New Richmond 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.7 °C | -5.63 °C | 0 mm |
| February | -13.82 °C | -4.46 °C | 0 mm |
| March | -10.7 °C | -0.69 °C | 6 mm |
| April | -2.7 °C | 5.05 °C | 52 mm |
| May | 4.43 °C | 13.49 °C | 85 mm |
| June | 10.04 °C | 18.68 °C | 101 mm |
| July | 13.8 °C | 22.47 °C | 125 mm |
| August | 13.67 °C | 22.12 °C | 108 mm |
| September | 8.87 °C | 17.72 °C | 100 mm |
| October | 3.96 °C | 11.23 °C | 106 mm |
| November | -1.44 °C | 4.72 °C | 72 mm |
| December | -9.5 °C | -2.17 °C | 24 mm |
| Annual | 0.2 °C | 8.5 °C | 779 mm |
| 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 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |