Algoma, Mississippi has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.4 °C (low) to 22.8 °C (high). Annual precipitation averages 1501.9 Millimeters. Algoma is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.3 °C | 11.1 °C | 122.68 mm |
| February | 1.4 °C | 13.5 °C | 133.6 mm |
| March | 5.4 °C | 18.6 °C | 136.4 mm |
| April | 9.9 °C | 23.4 °C | 149.1 mm |
| May | 15.1 °C | 27.4 °C | 145.29 mm |
| June | 19.3 °C | 30.9 °C | 129.03 mm |
| July | 21.1 °C | 32.6 °C | 114.3 mm |
| August | 20.4 °C | 32.5 °C | 111.25 mm |
| September | 16.6 °C | 29.7 °C | 92.46 mm |
| October | 10.2 °C | 24.2 °C | 99.31 mm |
| November | 4.5 °C | 17.4 °C | 110.74 mm |
| December | 1.4 °C | 12.4 °C | 157.73 mm |
| Annual | 10.4 °C | 22.8 °C | 1501.89 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |