Athens, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.5 °C (low) to 24.4 °C (high). Annual precipitation averages 1455.4 Millimeters. Athens is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.3 °C | 13.7 °C | 135.64 mm |
| February | 2.9 °C | 16 °C | 131.83 mm |
| March | 6.7 °C | 20.3 °C | 141.22 mm |
| April | 10.7 °C | 24.3 °C | 148.08 mm |
| May | 16.1 °C | 28.3 °C | 120.9 mm |
| June | 20.3 °C | 31.9 °C | 117.35 mm |
| July | 21.9 °C | 33.8 °C | 95.76 mm |
| August | 21.4 °C | 33.9 °C | 83.31 mm |
| September | 17.7 °C | 31.1 °C | 97.54 mm |
| October | 11.2 °C | 25.6 °C | 124.21 mm |
| November | 5.8 °C | 19.2 °C | 115.57 mm |
| December | 2.3 °C | 14.8 °C | 144.02 mm |
| Annual | 11.5 °C | 24.4 °C | 1455.43 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |