Shreveport, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.5 °C (low) to 24.5 °C (high). Annual precipitation averages 1349.5 Millimeters. Shreveport 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 | 1.9 °C | 13.4 °C | 118.11 mm |
| February | 3.7 °C | 15.8 °C | 113.54 mm |
| March | 7.7 °C | 20.1 °C | 132.08 mm |
| April | 12.1 °C | 24.6 °C | 131.83 mm |
| May | 17.3 °C | 28.5 °C | 111.76 mm |
| June | 21.5 °C | 32.2 °C | 118.87 mm |
| July | 23.1 °C | 34 °C | 91.44 mm |
| August | 22.7 °C | 34.3 °C | 77.22 mm |
| September | 18.9 °C | 31.4 °C | 96.77 mm |
| October | 12.2 °C | 25.6 °C | 115.06 mm |
| November | 6.6 °C | 19.3 °C | 111.51 mm |
| December | 2.8 °C | 14.6 °C | 131.32 mm |
| Annual | 12.5 °C | 24.5 °C | 1349.51 mm |
| 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 : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |