Garnish, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 38.1 °F (low) to 46.6 °F (high). Annual precipitation averages 50.9 Inches. Garnish is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -20.6 °F | -17.9 °F | 2133.6 in. |
| February | -21.2 °F | -18.5 °F | 2006.6 in. |
| March | -20.2 °F | -17.8 °F | 1930.4 in. |
| April | -18.2 °F | -15.6 °F | 2413 in. |
| May | -15.9 °F | -13 °F | 2413 in. |
| June | -13.5 °F | -10.8 °F | 2590.8 in. |
| July | -10.9 °F | -8.3 °F | 2768.6 in. |
| August | -9.9 °F | -7.2 °F | 2819.4 in. |
| September | -11.5 °F | -8.8 °F | 3251.2 in. |
| October | -13.9 °F | -11.5 °F | 3733.8 in. |
| November | -16.3 °F | -13.9 °F | 3683 in. |
| December | -18.8 °F | -16.2 °F | 3073.4 in. |
| Annual | 38.1 °F | 46.6 °F | 50.87 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |