Lacombe, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 59.8 °F (low) to 78 °F (high). Annual precipitation averages 64.7 Inches. Lacombe is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Dec. 1 - Dec. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 42.4 °F | 61.8 °F | 5.48 in. |
| February | 45.8 °F | 65.4 °F | 4.61 in. |
| March | 52.3 °F | 71.7 °F | 5.11 in. |
| April | 58.8 °F | 77.7 °F | 5.29 in. |
| May | 67.3 °F | 84.5 °F | 5.38 in. |
| June | 73.1 °F | 89.3 °F | 6.38 in. |
| July | 74.7 °F | 90.9 °F | 7.47 in. |
| August | 74.9 °F | 91.1 °F | 6.81 in. |
| September | 70.8 °F | 87.9 °F | 5.06 in. |
| October | 61.7 °F | 80.5 °F | 4.21 in. |
| November | 50.9 °F | 71.0 °F | 3.97 in. |
| December | 45.0 °F | 63.9 °F | 4.89 in. |
| Annual | 59.8 °F | 78 °F | 64.66 in. |
| Average First Frost Date | Dec. 1 - Dec. 10 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| 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 |