| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 53b - Kettle Moraines | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 53179 - Trevor, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 11 | 16 | 27 | 37 | 47 | 57 | 62 | 61 | 53 | 41 | 30 | 18 | 38 |
| Avg Max Temp (°F) | 28 | 33 | 43 | 56 | 68 | 78 | 82 | 80 | 72 | 61 | 46 | 33 | 57 |
| Avg Precip (In.) | 1.74 | 1.42 | 2.25 | 3.74 | 3.57 | 4.18 | 4 | 4.47 | 3.49 | 2.5 | 2.82 | 2.16 | 36.33 |