Addis, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.2 °C (low) to 25.9 °C (high). Annual precipitation averages 1622.6 Millimeters. Addis is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Jan. 21 - Jan. 31 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.1 °C | 16.7 °C | 154.94 mm |
| February | 6.9 °C | 18.9 °C | 122.68 mm |
| March | 10.4 °C | 22.7 °C | 112.78 mm |
| April | 13.7 °C | 26.1 °C | 133.1 mm |
| May | 18.2 °C | 29.7 °C | 148.84 mm |
| June | 21.8 °C | 32.2 °C | 174.5 mm |
| July | 22.9 °C | 33.1 °C | 146.56 mm |
| August | 22.6 °C | 33.3 °C | 160.02 mm |
| September | 20.3 °C | 31.4 °C | 118.11 mm |
| October | 14.3 °C | 27.2 °C | 117.35 mm |
| November | 8.7 °C | 21.6 °C | 103.63 mm |
| December | 6 °C | 17.8 °C | 130.05 mm |
| Annual | 14.2 °C | 25.9 °C | 1622.56 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Jan. 21 - Jan. 31 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |