Bossier City, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.4 °F (low) to 76.2 °F (high). Annual precipitation averages 53.2 Inches. Bossier City is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 35.3 °F | 56.5 °F | 4.66 in. |
| February | 38.8 °F | 60.6 °F | 4.49 in. |
| March | 45.7 °F | 68.4 °F | 5.21 in. |
| April | 53.4 °F | 76.1 °F | 5.21 in. |
| May | 62.9 °F | 83.3 °F | 4.4 in. |
| June | 70.5 °F | 90.1 °F | 4.68 in. |
| July | 73.5 °F | 93.3 °F | 3.62 in. |
| August | 72.5 °F | 93.8 °F | 3.06 in. |
| September | 65.8 °F | 88.6 °F | 3.82 in. |
| October | 53.8 °F | 78.2 °F | 4.52 in. |
| November | 43.7 °F | 66.9 °F | 4.37 in. |
| December | 37.0 °F | 58.4 °F | 5.16 in. |
| Annual | 54.4 °F | 76.2 °F | 53.2 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |