| 2023 Hardiness Zone: | 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 3b: -35F to -30F |
| 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: | 51b - Central Wisconsin Undulating Till Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 54013 - Glenwood City, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 1 | 8 | 20 | 32 | 44 | 54 | 59 | 57 | 48 | 36 | 23 | 8 | 32 |
| Avg Max Temp (°F) | 21 | 28 | 40 | 56 | 69 | 77 | 81 | 79 | 70 | 58 | 40 | 25 | 54 |
| Avg Precip (In.) | 1.05 | .78 | 1.85 | 2.78 | 3.42 | 4.55 | 4.21 | 4.49 | 3.71 | 2.35 | 2.03 | 1.01 | 32.24 |