Trout River, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 1.8 °C (low) to 5.6 °C (high). Annual precipitation averages 848 Millimeters. Trout River is located in USDA Plant Hardiness Zone 4b. 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 | -8.04 °C | -3.42 °C | 22 mm |
| February | -8.65 °C | -4.02 °C | 11 mm |
| March | -7.11 °C | -2.65 °C | 27 mm |
| April | -2.41 °C | 1.12 °C | 51 mm |
| May | 2.35 °C | 6.22 °C | 76 mm |
| June | 7.48 °C | 11.33 °C | 64 mm |
| July | 12.19 °C | 16.05 °C | 90 mm |
| August | 13.67 °C | 17.34 °C | 108 mm |
| September | 10.11 °C | 13.74 °C | 121 mm |
| October | 5.4 °C | 8.6 °C | 111 mm |
| November | 0.38 °C | 3.95 °C | 102 mm |
| December | -4.53 °C | -0.5 °C | 65 mm |
| Annual | 1.8 °C | 5.6 °C | 848 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 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |