Tullos, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12 °C (low) to 25.4 °C (high). Annual precipitation averages 1536.7 Millimeters. Tullos 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 | 2.3 °C | 14.9 °C | 152.4 mm |
| February | 3.8 °C | 17.2 °C | 137.41 mm |
| March | 7.4 °C | 21.7 °C | 146.05 mm |
| April | 11.5 °C | 25.6 °C | 151.13 mm |
| May | 16.4 °C | 29.4 °C | 129.79 mm |
| June | 20.3 °C | 32.4 °C | 120.9 mm |
| July | 21.8 °C | 34.1 °C | 117.35 mm |
| August | 21.3 °C | 34.6 °C | 94.74 mm |
| September | 18.1 °C | 31.7 °C | 97.79 mm |
| October | 11.9 °C | 26.8 °C | 113.28 mm |
| November | 6.3 °C | 20.4 °C | 131.32 mm |
| December | 3.2 °C | 15.9 °C | 144.53 mm |
| Annual | 12 °C | 25.4 °C | 1536.69 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |