Bernice, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.3 °C (low) to 24.4 °C (high). Annual precipitation averages 1456.7 Millimeters. Bernice 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 °C | 13.4 °C | 140.72 mm |
| February | 2.7 °C | 15.8 °C | 122.17 mm |
| March | 6.6 °C | 20.2 °C | 143.76 mm |
| April | 10.7 °C | 24.5 °C | 147.83 mm |
| May | 15.9 °C | 28.3 °C | 122.68 mm |
| June | 20.1 °C | 32.1 °C | 112.78 mm |
| July | 21.8 °C | 33.7 °C | 105.92 mm |
| August | 21.3 °C | 33.9 °C | 91.69 mm |
| September | 17.4 °C | 31.1 °C | 94.23 mm |
| October | 10.9 °C | 25.6 °C | 117.35 mm |
| November | 5.4 °C | 19.1 °C | 112.78 mm |
| December | 2.1 °C | 14.6 °C | 144.78 mm |
| Annual | 11.3 °C | 24.4 °C | 1456.69 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 |