Rosedale, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 57.6 °F (low) to 78.4 °F (high). Annual precipitation averages 63.8 Inches. Rosedale is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 41.2 °F | 61.9 °F | 6.33 in. |
| February | 44.5 °F | 65.9 °F | 4.89 in. |
| March | 50.7 °F | 72.7 °F | 4.43 in. |
| April | 56.6 °F | 78.6 °F | 5.24 in. |
| May | 64.9 °F | 85.3 °F | 5.72 in. |
| June | 71.1 °F | 89.9 °F | 6.62 in. |
| July | 73.3 °F | 91.3 °F | 5.63 in. |
| August | 72.7 °F | 91.9 °F | 6.07 in. |
| September | 68.2 °F | 88.3 °F | 4.74 in. |
| October | 57.6 °F | 80.7 °F | 4.65 in. |
| November | 47.7 °F | 70.7 °F | 4.27 in. |
| December | 42.7 °F | 63.9 °F | 5.16 in. |
| Annual | 57.6 °F | 78.4 °F | 63.75 in. |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |