Baldwin, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 59.2 °F (low) to 77.5 °F (high). Annual precipitation averages 64.6 Inches. Baldwin is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 43.0 °F | 61.8 °F | 5.6 in. |
| February | 46.5 °F | 65.4 °F | 4.11 in. |
| March | 52.3 °F | 71.5 °F | 3.9 in. |
| April | 58.4 °F | 77.3 °F | 4.6 in. |
| May | 66.3 °F | 83.5 °F | 4.75 in. |
| June | 72.2 °F | 88.2 °F | 7.03 in. |
| July | 74.2 °F | 89.6 °F | 7.86 in. |
| August | 73.6 °F | 90.2 °F | 7.68 in. |
| September | 69.7 °F | 87.2 °F | 5.46 in. |
| October | 59.8 °F | 80.1 °F | 4.48 in. |
| November | 49.7 °F | 70.9 °F | 4.36 in. |
| December | 44.7 °F | 64.2 °F | 4.77 in. |
| Annual | 59.2 °F | 77.5 °F | 64.6 in. |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |