Portugal Cove South, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 3.7 °C (low) to 8.1 °C (high). Annual precipitation averages 1167 Millimeters. 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 | -4.05 °C | 0.88 °C | 96 mm |
| February | -4.92 °C | -0.21 °C | 91 mm |
| March | -3.63 °C | 0.49 °C | 84 mm |
| April | -0.62 °C | 3.67 °C | 98 mm |
| May | 3.19 °C | 7.68 °C | 85 mm |
| June | 7.2 °C | 11.71 °C | 82 mm |
| July | 12.13 °C | 16.51 °C | 91 mm |
| August | 14.03 °C | 18.33 °C | 72 mm |
| September | 11.32 °C | 15.96 °C | 95 mm |
| October | 7.42 °C | 11.54 °C | 122 mm |
| November | 3.25 °C | 7.42 °C | 128 mm |
| December | -0.91 °C | 3.52 °C | 123 mm |
| Annual | 3.7 °C | 8.1 °C | 1167 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 |