Carmanville, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 2 °C (low) to 7.1 °C (high). Annual precipitation averages 825 Millimeters. Carmanville is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.78 °C | -2 °C | 32 mm |
| February | -7.53 °C | -2.66 °C | 26 mm |
| March | -6.01 °C | -1.44 °C | 26 mm |
| April | -2.11 °C | 2.21 °C | 46 mm |
| May | 2.03 °C | 7.61 °C | 71 mm |
| June | 6.8 °C | 12.87 °C | 74 mm |
| July | 11.95 °C | 18.66 °C | 87 mm |
| August | 12.82 °C | 18.92 °C | 95 mm |
| September | 9.62 °C | 15.3 °C | 102 mm |
| October | 5.49 °C | 9.87 °C | 103 mm |
| November | 0.93 °C | 5.13 °C | 96 mm |
| December | -3.5 °C | 0.65 °C | 67 mm |
| Annual | 2 °C | 7.1 °C | 825 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |