| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F 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: | 50j - Brule and Paint Rive Drumlins |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 54149 - Mountain, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 1 | 5 | 17 | 29 | 41 | 50 | 55 | 53 | 45 | 34 | 22 | 9 | 30 |
| Avg Max Temp (°F) | 23 | 29 | 39 | 54 | 68 | 77 | 81 | 78 | 69 | 57 | 40 | 27 | 53 |
| Avg Precip (In.) | 1.28 | .96 | 1.99 | 2.75 | 3.41 | 3.72 | 3.6 | 3.87 | 3.74 | 2.47 | 2.42 | 1.5 | 31.71 |