North River, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 36.7 °F (low) to 46.7 °F (high). Annual precipitation averages 39.5 Inches. 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 | -21.1 °F | -17.9 °F | 1676.4 in. |
| February | -21.5 °F | -18.5 °F | 1676.4 in. |
| March | -20.6 °F | -17.9 °F | 1574.8 in. |
| April | -18.5 °F | -15.6 °F | 1854.2 in. |
| May | -16.3 °F | -13 °F | 2057.4 in. |
| June | -14 °F | -10.5 °F | 1752.6 in. |
| July | -11.2 °F | -7.5 °F | 1955.8 in. |
| August | -10.5 °F | -7.1 °F | 1981.2 in. |
| September | -12.1 °F | -8.8 °F | 2565.4 in. |
| October | -14.3 °F | -11.6 °F | 3022.6 in. |
| November | -16.7 °F | -14 °F | 2768.6 in. |
| December | -19.2 °F | -16.4 °F | 2616.2 in. |
| Annual | 36.7 °F | 46.7 °F | 39.54 in. |
| 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 : -15°F to -10°F |
| Current Drought Conditions | Normal |