Dubach, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.7 °C (low) to 24.7 °C (high). Annual precipitation averages 1448.6 Millimeters. Dubach 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 | 1.4 °C | 13.8 °C | 140.21 mm |
| February | 3.1 °C | 16.3 °C | 127.25 mm |
| March | 6.9 °C | 20.8 °C | 139.45 mm |
| April | 10.9 °C | 24.8 °C | 144.78 mm |
| May | 16.2 °C | 28.8 °C | 118.87 mm |
| June | 20.4 °C | 32.4 °C | 114.05 mm |
| July | 22.1 °C | 33.9 °C | 100.84 mm |
| August | 21.4 °C | 34.2 °C | 90.68 mm |
| September | 17.9 °C | 31.6 °C | 94.23 mm |
| October | 11.4 °C | 25.9 °C | 119.63 mm |
| November | 5.9 °C | 19.4 °C | 115.57 mm |
| December | 2.6 °C | 15 °C | 143 mm |
| Annual | 11.7 °C | 24.7 °C | 1448.56 mm |
| 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 : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |