Humbird, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.4 °F (low) to 54.5 °F (high). Annual precipitation averages 35.2 Inches. Humbird is located in USDA Plant Hardiness Zone 4b. 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 | 5.0 °F | 23.6 °F | 1.21 in. |
| February | 8.1 °F | 28.5 °F | 1.06 in. |
| March | 20.1 °F | 40.8 °F | 1.79 in. |
| April | 32.5 °F | 55.1 °F | 3.3 in. |
| May | 44.5 °F | 67.9 °F | 4.25 in. |
| June | 54.6 °F | 77.0 °F | 5.08 in. |
| July | 58.4 °F | 81.1 °F | 3.97 in. |
| August | 56.4 °F | 79.2 °F | 4.3 in. |
| September | 47.8 °F | 71.7 °F | 3.95 in. |
| October | 36.1 °F | 57.9 °F | 2.92 in. |
| November | 24.5 °F | 42.2 °F | 1.87 in. |
| December | 12.5 °F | 29.0 °F | 1.46 in. |
| Annual | 33.4 °F | 54.5 °F | 35.16 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |