Clinton, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.8 °F (low) to 78 °F (high). Annual precipitation averages 63.4 Inches. Clinton is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.2 °F | 61.4 °F | 6.67 in. |
| February | 42.2 °F | 65.3 °F | 5.59 in. |
| March | 48.5 °F | 72.0 °F | 5.18 in. |
| April | 55.0 °F | 78.3 °F | 5.34 in. |
| May | 63.0 °F | 84.8 °F | 5.38 in. |
| June | 69.4 °F | 89.8 °F | 5.74 in. |
| July | 71.6 °F | 91.5 °F | 5.5 in. |
| August | 71.2 °F | 91.8 °F | 5.78 in. |
| September | 66.7 °F | 88.1 °F | 4.32 in. |
| October | 55.6 °F | 79.8 °F | 4.51 in. |
| November | 46.1 °F | 70.1 °F | 4.08 in. |
| December | 40.9 °F | 63.2 °F | 5.34 in. |
| Annual | 55.8 °F | 78 °F | 63.43 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |