| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 51g - Door Peninsula |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 54201 - Algoma, WI | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 13 | 23 | 33 | 43 | 52 | 59 | 59 | 51 | 40 | 28 | 16 | 36 |
| Avg Max Temp (°F) | 25 | 29 | 38 | 50 | 62 | 72 | 77 | 76 | 68 | 56 | 43 | 30 | 52 |
| Avg Precip (In.) | 2.01 | 1.32 | 2.03 | 2.64 | 2.68 | 3.36 | 3.14 | 3.7 | 3.51 | 2.75 | 2.66 | 1.99 | 31.8 |