Lawn, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 39 °F (low) to 47.2 °F (high). Annual precipitation averages 50.3 Inches. Lawn 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 | -20.2 °F | -17.5 °F | 2184.4 in. |
| February | -20.7 °F | -18.2 °F | 1955.8 in. |
| March | -19.8 °F | -17.4 °F | 2032 in. |
| April | -17.9 °F | -15.4 °F | 2514.6 in. |
| May | -15.7 °F | -13 °F | 2413 in. |
| June | -13.4 °F | -10.8 °F | 2667 in. |
| July | -10.7 °F | -8.2 °F | 2819.4 in. |
| August | -9.7 °F | -7.1 °F | 2590.8 in. |
| September | -11.3 °F | -8.6 °F | 3149.6 in. |
| October | -13.6 °F | -11.3 °F | 3556 in. |
| November | -16 °F | -13.6 °F | 3556 in. |
| December | -18.4 °F | -15.9 °F | 2997.2 in. |
| Annual | 39 °F | 47.2 °F | 50.28 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |