Lake Nebagamon, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30 °F (low) to 51.3 °F (high). Annual precipitation averages 33 Inches. Lake Nebagamon is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.9 °F | 20.3 °F | 1.14 in. |
| February | 4.1 °F | 25.9 °F | 1.04 in. |
| March | 15.9 °F | 37.7 °F | 1.73 in. |
| April | 28.3 °F | 50.9 °F | 2.78 in. |
| May | 39.8 °F | 65.2 °F | 3.47 in. |
| June | 49.7 °F | 74.0 °F | 4.15 in. |
| July | 55.4 °F | 78.6 °F | 4.31 in. |
| August | 53.8 °F | 76.6 °F | 3.9 in. |
| September | 46.0 °F | 68.3 °F | 3.5 in. |
| October | 34.4 °F | 54.1 °F | 3.23 in. |
| November | 22.2 °F | 38.4 °F | 2.12 in. |
| December | 9.2 °F | 25.4 °F | 1.64 in. |
| Annual | 30 °F | 51.3 °F | 33.01 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |