| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F |
| 2012 Hardiness Zone: | Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F |
| 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 54724 - Bloomer, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 0 | 7 | 20 | 32 | 44 | 54 | 58 | 56 | 47 | 36 | 22 | 7 | 32 |
| Avg Max Temp (°F) | 20 | 27 | 39 | 56 | 69 | 78 | 82 | 79 | 70 | 57 | 39 | 25 | 53 |
| Avg Precip (In.) | 1.02 | .74 | 1.8 | 2.79 | 3.54 | 4.51 | 3.87 | 4.94 | 3.84 | 2.34 | 2.09 | 1.04 | 32.51 |