Portugal Cove South, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 38.7 °F (low) to 46.6 °F (high). Annual precipitation averages 45.9 Inches. Portugal Cove South 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 | -20 °F | -17.3 °F | 2438.4 in. |
| February | -20.5 °F | -17.9 °F | 2311.4 in. |
| March | -19.8 °F | -17.5 °F | 2133.6 in. |
| April | -18.1 °F | -15.7 °F | 2489.2 in. |
| May | -16 °F | -13.5 °F | 2159 in. |
| June | -13.8 °F | -11.3 °F | 2082.8 in. |
| July | -11 °F | -8.6 °F | 2311.4 in. |
| August | -10 °F | -7.6 °F | 1828.8 in. |
| September | -11.5 °F | -8.9 °F | 2413 in. |
| October | -13.7 °F | -11.4 °F | 3098.8 in. |
| November | -16 °F | -13.7 °F | 3251.2 in. |
| December | -18.3 °F | -15.8 °F | 3124.2 in. |
| Annual | 38.7 °F | 46.6 °F | 45.94 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 |