Sarepta, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53 °F (low) to 75.7 °F (high). Annual precipitation averages 55 Inches. Sarepta is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.3 °F | 56.0 °F | 4.68 in. |
| February | 37.3 °F | 60.2 °F | 4.81 in. |
| March | 44.0 °F | 68.1 °F | 5.66 in. |
| April | 51.5 °F | 75.8 °F | 5.11 in. |
| May | 61.2 °F | 83.0 °F | 4.78 in. |
| June | 69.0 °F | 89.8 °F | 4.53 in. |
| July | 72.0 °F | 93.0 °F | 3.97 in. |
| August | 71.1 °F | 93.6 °F | 3.41 in. |
| September | 64.5 °F | 88.0 °F | 3.84 in. |
| October | 52.4 °F | 77.3 °F | 4.91 in. |
| November | 42.5 °F | 66.0 °F | 4.11 in. |
| December | 36.2 °F | 58.0 °F | 5.2 in. |
| Annual | 53 °F | 75.7 °F | 55.01 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |