Antigo, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.2 °F (low) to 51.5 °F (high). Annual precipitation averages 30.1 Inches. Antigo 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 | 3.6 °F | 21.6 °F | 0.92 in. |
| February | 5.1 °F | 26.0 °F | 0.79 in. |
| March | 16.1 °F | 37.6 °F | 1.37 in. |
| April | 29.5 °F | 51.1 °F | 2.66 in. |
| May | 42.1 °F | 64.8 °F | 3.37 in. |
| June | 52.3 °F | 73.9 °F | 4.28 in. |
| July | 55.8 °F | 78.0 °F | 3.63 in. |
| August | 53.9 °F | 76.2 °F | 3.37 in. |
| September | 46.1 °F | 68.4 °F | 3.61 in. |
| October | 34.8 °F | 54.5 °F | 3.02 in. |
| November | 23.6 °F | 39.2 °F | 1.74 in. |
| December | 11.0 °F | 26.8 °F | 1.31 in. |
| Annual | 31.2 °F | 51.5 °F | 30.07 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 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |