| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | 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: | Jun. 1 - Jun. 10 |
| 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 54554 - Phelps, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 0 | 4 | 14 | 27 | 39 | 49 | 54 | 52 | 44 | 33 | 21 | 7 | 29 |
| Avg Max Temp (°F) | 20 | 26 | 37 | 51 | 66 | 73 | 77 | 75 | 65 | 53 | 37 | 24 | 50 |
| Avg Precip (In.) | 1.43 | .98 | 1.84 | 2.16 | 3.09 | 4.01 | 3.88 | 4.01 | 3.99 | 2.75 | 2.35 | 1.5 | 31.99 |