Westport, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 31.5 °F (low) to 43.1 °F (high). Annual precipitation averages 27.6 Inches. Westport is located in USDA Plant Hardiness Zone . The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -23.7 °F | -20.3 °F | 203.2 in. |
| February | -23.8 °F | -20.4 °F | 279.4 in. |
| March | -22.7 °F | -19.3 °F | 482.6 in. |
| April | -19.7 °F | -16.6 °F | 1066.8 in. |
| May | -17.4 °F | -13.3 °F | 1651 in. |
| June | -14.5 °F | -10.2 °F | 1727.2 in. |
| July | -11.8 °F | -7.1 °F | 2133.6 in. |
| August | -11.6 °F | -7.3 °F | 2438.4 in. |
| September | -13.7 °F | -9.8 °F | 2565.4 in. |
| October | -16.1 °F | -13.2 °F | 2438.4 in. |
| November | -18.7 °F | -16 °F | 1752.6 in. |
| December | -21.4 °F | -18.7 °F | 1041.4 in. |
| Annual | 31.5 °F | 43.1 °F | 27.56 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | |
| Current Drought Conditions | Normal |