Waco, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.3 °C (low) to 25.5 °C (high). Annual precipitation averages 951.7 Millimeters. Waco 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 | 2.5 °C | 14.9 °C | 69.34 mm |
| February | 4.6 °C | 17.1 °C | 68.58 mm |
| March | 8.6 °C | 20.8 °C | 89.66 mm |
| April | 12.7 °C | 25 °C | 80.01 mm |
| May | 17.8 °C | 29 °C | 114.3 mm |
| June | 21.8 °C | 33.2 °C | 90.68 mm |
| July | 23.4 °C | 35.3 °C | 42.67 mm |
| August | 23.3 °C | 35.7 °C | 59.69 mm |
| September | 19.6 °C | 32.2 °C | 78.74 mm |
| October | 13.7 °C | 26.8 °C | 106.17 mm |
| November | 8.1 °C | 20.3 °C | 76.2 mm |
| December | 3.6 °C | 15.8 °C | 75.69 mm |
| Annual | 13.3 °C | 25.5 °C | 951.73 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |