Carbonear, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 3 °C (low) to 7.9 °C (high). Annual precipitation averages 970 Millimeters. Carbonear 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.36 °C | -0.1 °C | 63 mm |
| February | -6.14 °C | -1.15 °C | 63 mm |
| March | -4.53 °C | -0.17 °C | 58 mm |
| April | -0.99 °C | 3.5 °C | 68 mm |
| May | 2.81 °C | 7.89 °C | 78 mm |
| June | 6.85 °C | 12.13 °C | 67 mm |
| July | 11.94 °C | 17.62 °C | 77 mm |
| August | 13.52 °C | 18.62 °C | 78 mm |
| September | 10.62 °C | 15.88 °C | 100 mm |
| October | 6.7 °C | 11.07 °C | 113 mm |
| November | 2.42 °C | 6.78 °C | 105 mm |
| December | -2.02 °C | 2.54 °C | 100 mm |
| Annual | 3 °C | 7.9 °C | 970 mm |
| 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 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |