Nipigon, Ontario climate data is summarized below. Average annual temperatures range from 27.6 °F (low) to 45.3 °F (high). Annual precipitation averages 22.3 Inches. Nipigon 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.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -28.7 °F | -23.1 °F | 0 in. |
| February | -28.8 °F | -22.3 °F | 0 in. |
| March | -24.3 °F | -17.9 °F | 0 in. |
| April | -20 °F | -14.2 °F | 584.2 in. |
| May | -16.1 °F | -10.1 °F | 2489.2 in. |
| June | -13.1 °F | -7.1 °F | 2362.2 in. |
| July | -11.3 °F | -5.6 °F | 2540 in. |
| August | -11 °F | -5.4 °F | 2032 in. |
| September | -13.4 °F | -8.3 °F | 2032 in. |
| October | -16.3 °F | -12.3 °F | 1828.8 in. |
| November | -20.4 °F | -16.5 °F | 533.4 in. |
| December | -26.4 °F | -21.6 °F | 0 in. |
| Annual | 27.6 °F | 45.3 °F | 22.33 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3a : -40°F to -35°F |
| Current Drought Conditions | Normal |