Rusk, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13 °C (low) to 24.8 °C (high). Annual precipitation averages 1248.7 Millimeters. Rusk 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. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.9 °C | 14.4 °C | 107.44 mm |
| February | 4.8 °C | 16.7 °C | 101.35 mm |
| March | 8.5 °C | 20.7 °C | 111.76 mm |
| April | 12.2 °C | 24.7 °C | 102.36 mm |
| May | 17.3 °C | 28.4 °C | 119.38 mm |
| June | 21.2 °C | 32 °C | 119.89 mm |
| July | 22.5 °C | 33.9 °C | 78.99 mm |
| August | 22.2 °C | 34.5 °C | 85.34 mm |
| September | 19 °C | 31.3 °C | 87.88 mm |
| October | 13.3 °C | 25.9 °C | 113.54 mm |
| November | 7.8 °C | 19.8 °C | 104.9 mm |
| December | 4.1 °C | 15.3 °C | 115.82 mm |
| Annual | 13 °C | 24.8 °C | 1248.65 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 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 |