| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°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: | 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: | 52b - Paleozoic Plateau/Coulee Section |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 54619 - Cashton, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 6 | 12 | 23 | 35 | 47 | 56 | 61 | 59 | 50 | 39 | 25 | 12 | 35 |
| Avg Max Temp (°F) | 22 | 29 | 41 | 57 | 69 | 78 | 81 | 79 | 70 | 58 | 41 | 27 | 54 |
| Avg Precip (In.) | 1.2 | 1.01 | 1.87 | 3.43 | 3.66 | 4.04 | 4.66 | 4.57 | 4.1 | 2.57 | 2.43 | 1.25 | 34.79 |