Algoma, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.7 °F (low) to 52 °F (high). Annual precipitation averages 30.8 Inches. Algoma is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.9 °F | 25.9 °F | 1.5 in. |
| February | 13.2 °F | 28.7 °F | 1.07 in. |
| March | 22.5 °F | 38.1 °F | 1.62 in. |
| April | 33.5 °F | 48.9 °F | 2.94 in. |
| May | 44.1 °F | 60.8 °F | 3.26 in. |
| June | 54.2 °F | 70.9 °F | 3.54 in. |
| July | 59.7 °F | 76.6 °F | 3.55 in. |
| August | 59.6 °F | 75.8 °F | 3.46 in. |
| September | 52.1 °F | 68.5 °F | 3.03 in. |
| October | 40.9 °F | 55.6 °F | 3.01 in. |
| November | 29.8 °F | 43.0 °F | 2.17 in. |
| December | 19.1 °F | 31.7 °F | 1.61 in. |
| Annual | 36.7 °F | 52 °F | 30.76 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |