Musgrave Harbour, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 35.8 °F (low) to 44.1 °F (high). Annual precipitation averages 33.8 Inches. Musgrave Harbour is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -21.3 °F | -18.8 °F | 965.2 in. |
| February | -21.7 °F | -19.2 °F | 736.6 in. |
| March | -20.9 °F | -18.6 °F | 736.6 in. |
| April | -18.9 °F | -16.7 °F | 1193.8 in. |
| May | -16.7 °F | -14 °F | 1828.8 in. |
| June | -14.1 °F | -11.2 °F | 1905 in. |
| July | -11.3 °F | -8.1 °F | 2235.2 in. |
| August | -10.7 °F | -7.8 °F | 2413 in. |
| September | -12.4 °F | -9.6 °F | 2717.8 in. |
| October | -14.7 °F | -12.5 °F | 2692.4 in. |
| November | -17.2 °F | -15 °F | 2540 in. |
| December | -19.6 °F | -17.3 °F | 1854.2 in. |
| Annual | 35.8 °F | 44.1 °F | 33.8 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |