Marten Falls First Nation, Ontario climate data is summarized below. Marten Falls First Nation is located in USDA Plant Hardiness Zone 2a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 2a : -45.6°C to -42.8°C |
| Current Drought Conditions | Normal |