Eastport, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 1.8 °C (low) to 7.8 °C (high). Annual precipitation averages 888 Millimeters. Eastport is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.67 °C | -1.72 °C | 38 mm |
| February | -8.44 °C | -2.37 °C | 40 mm |
| March | -6.43 °C | -0.95 °C | 36 mm |
| April | -1.92 °C | 3.17 °C | 55 mm |
| May | 2.26 °C | 8.58 °C | 75 mm |
| June | 6.86 °C | 13.61 °C | 73 mm |
| July | 11.98 °C | 19.39 °C | 80 mm |
| August | 12.77 °C | 19.67 °C | 90 mm |
| September | 9.41 °C | 16.18 °C | 105 mm |
| October | 5.35 °C | 10.54 °C | 112 mm |
| November | 0.94 °C | 5.81 °C | 105 mm |
| December | -3.86 °C | 1.19 °C | 79 mm |
| Annual | 1.8 °C | 7.8 °C | 888 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |