North River, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 2.6 °C (low) to 8.2 °C (high). Annual precipitation averages 1004 Millimeters. North River is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.93 °C | -0.24 °C | 66 mm |
| February | -6.77 °C | -1.28 °C | 66 mm |
| March | -5.03 °C | -0.17 °C | 62 mm |
| April | -1.29 °C | 3.88 °C | 73 mm |
| May | 2.63 °C | 8.63 °C | 81 mm |
| June | 6.75 °C | 13.07 °C | 69 mm |
| July | 11.84 °C | 18.45 °C | 77 mm |
| August | 13.19 °C | 19.3 °C | 78 mm |
| September | 10.15 °C | 16.22 °C | 101 mm |
| October | 6.26 °C | 11.12 °C | 119 mm |
| November | 2 °C | 6.79 °C | 109 mm |
| December | -2.48 °C | 2.44 °C | 103 mm |
| Annual | 2.6 °C | 8.2 °C | 1004 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |