| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | May 21 - May 31 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 51b - Central Wisconsin Undulating Till Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 54409 - Antigo, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | -1 | 4 | 17 | 30 | 41 | 50 | 55 | 53 | 44 | 34 | 21 | 7 | 30 |
| Avg Max Temp (°F) | 20 | 26 | 37 | 52 | 66 | 75 | 79 | 76 | 66 | 55 | 38 | 25 | 51 |
| Avg Precip (In.) | .86 | .8 | 1.7 | 2.62 | 3.06 | 3.75 | 3.95 | 4.23 | 4.07 | 2.58 | 2.14 | 1.18 | 30.93 |