Heart's Desire, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 2.9 °C (low) to 7.8 °C (high). Annual precipitation averages 963 Millimeters. Heart's Desire is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.69 °C | -0.28 °C | 60 mm |
| February | -6.44 °C | -1.3 °C | 59 mm |
| March | -4.68 °C | -0.23 °C | 56 mm |
| April | -1.01 °C | 3.44 °C | 67 mm |
| May | 2.87 °C | 7.93 °C | 78 mm |
| June | 6.98 °C | 12.23 °C | 68 mm |
| July | 12.02 °C | 17.6 °C | 75 mm |
| August | 13.54 °C | 18.67 °C | 80 mm |
| September | 10.61 °C | 15.86 °C | 102 mm |
| October | 6.63 °C | 11 °C | 114 mm |
| November | 2.31 °C | 6.7 °C | 105 mm |
| December | -2.22 °C | 2.43 °C | 99 mm |
| Annual | 2.9 °C | 7.8 °C | 963 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |