Red Lake, Ontario climate data is summarized below. Average annual temperatures range from -3.8 °C (low) to 6.5 °C (high). Annual precipitation averages 608 Millimeters. Red Lake is located in USDA Plant Hardiness Zone 3a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -23.25 °C | -13.19 °C | 0 mm |
| February | -22.33 °C | -10.32 °C | 0 mm |
| March | -13.55 °C | -1.28 °C | 0 mm |
| April | -4.67 °C | 7.16 °C | 26 mm |
| May | 2.98 °C | 14.86 °C | 87 mm |
| June | 9.66 °C | 20.69 °C | 125 mm |
| July | 12.68 °C | 23.38 °C | 129 mm |
| August | 12 °C | 22.45 °C | 104 mm |
| September | 7.21 °C | 17.02 °C | 77 mm |
| October | 1.22 °C | 8.75 °C | 60 mm |
| November | -7.65 °C | -0.77 °C | 0 mm |
| December | -19.73 °C | -11.22 °C | 0 mm |
| Annual | -3.8 °C | 6.5 °C | 608 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3a : -40°C to -37.2°C |
| Current Drought Conditions | Normal |