| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 50k - Wisconsin/Michigan Pine Barrens |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 54153 - Oconto, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 5 | 9 | 20 | 32 | 43 | 53 | 57 | 56 | 47 | 36 | 25 | 12 | 33 |
| Avg Max Temp (°F) | 24 | 28 | 39 | 52 | 66 | 75 | 80 | 77 | 69 | 57 | 42 | 29 | 53 |
| Avg Precip (In.) | 1.88 | 1.18 | 2.29 | 2.64 | 3.13 | 3.51 | 3.75 | 3.43 | 3.29 | 2.33 | 2.5 | 1.7 | 31.63 |