Lawn, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 3.9 °C (low) to 8.5 °C (high). Annual precipitation averages 1277 Millimeters. 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 | -4.3 °C | 0.53 °C | 86 mm |
| February | -5.3 °C | -0.73 °C | 77 mm |
| March | -3.65 °C | 0.61 °C | 80 mm |
| April | -0.23 °C | 4.26 °C | 99 mm |
| May | 3.73 °C | 8.69 °C | 95 mm |
| June | 7.86 °C | 12.63 °C | 105 mm |
| July | 12.71 °C | 17.19 °C | 111 mm |
| August | 14.59 °C | 19.23 °C | 102 mm |
| September | 11.71 °C | 16.45 °C | 124 mm |
| October | 7.61 °C | 11.7 °C | 140 mm |
| November | 3.17 °C | 7.44 °C | 140 mm |
| December | -1.05 °C | 3.42 °C | 118 mm |
| Annual | 3.9 °C | 8.5 °C | 1277 mm |
| 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 : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |