Talco, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.5 °C (low) to 24.3 °C (high). Annual precipitation averages 1216.7 Millimeters. Talco 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 | 1.2 °C | 13.1 °C | 85.34 mm |
| February | 2.8 °C | 15.3 °C | 97.54 mm |
| March | 6.7 °C | 19.7 °C | 114.05 mm |
| April | 10.6 °C | 23.9 °C | 112.52 mm |
| May | 15.8 °C | 27.9 °C | 126.24 mm |
| June | 20.3 °C | 32.1 °C | 101.85 mm |
| July | 21.9 °C | 34.2 °C | 79.5 mm |
| August | 21.3 °C | 34.7 °C | 66.55 mm |
| September | 18 °C | 31.4 °C | 93.73 mm |
| October | 11.3 °C | 25.6 °C | 121.67 mm |
| November | 6.1 °C | 19.1 °C | 100.58 mm |
| December | 2.1 °C | 14.1 °C | 117.09 mm |
| Annual | 11.5 °C | 24.3 °C | 1216.66 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |