Tivoli, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16.8 °C (low) to 26.2 °C (high). Annual precipitation averages 1007.6 Millimeters. Tivoli is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.2 °C | 18.1 °C | 68.07 mm |
| February | 9.6 °C | 19.7 °C | 50.29 mm |
| March | 13.2 °C | 22.4 °C | 75.18 mm |
| April | 16.5 °C | 25.5 °C | 59.94 mm |
| May | 20.7 °C | 29.1 °C | 102.11 mm |
| June | 23.7 °C | 31.9 °C | 99.82 mm |
| July | 24.6 °C | 32.8 °C | 88.9 mm |
| August | 24.5 °C | 33.5 °C | 89.15 mm |
| September | 22.2 °C | 31.6 °C | 143.76 mm |
| October | 17.9 °C | 27.9 °C | 95.5 mm |
| November | 12.4 °C | 22.9 °C | 71.37 mm |
| December | 8.5 °C | 19 °C | 63.5 mm |
| Annual | 16.8 °C | 26.2 °C | 1007.59 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |