Slaton, Texas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 8.7 °C (low) to 23.5 °C (high). Annual precipitation averages 486.4 Millimeters. Slaton is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.6 °C | 12.7 °C | 17.78 mm |
| February | -0.9 °C | 15.2 °C | 19.05 mm |
| March | 3.2 °C | 19.6 °C | 25.91 mm |
| April | 7.5 °C | 24 °C | 37.34 mm |
| May | 13.3 °C | 28.3 °C | 66.55 mm |
| June | 18.2 °C | 32.3 °C | 66.55 mm |
| July | 20.2 °C | 33.5 °C | 54.36 mm |
| August | 19.4 °C | 33 °C | 52.32 mm |
| September | 15.4 °C | 28.9 °C | 67.06 mm |
| October | 9.2 °C | 24.1 °C | 35.05 mm |
| November | 2.6 °C | 17.8 °C | 24.38 mm |
| December | -1.7 °C | 13.1 °C | 20.07 mm |
| Annual | 8.7 °C | 23.5 °C | 486.42 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |