Jayton, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.5 °C (low) to 24.8 °C (high). Annual precipitation averages 565.4 Millimeters. Jayton 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 | -2.2 °C | 13.4 °C | 22.86 mm |
| February | -0.4 °C | 15.7 °C | 28.19 mm |
| March | 4.1 °C | 20.4 °C | 36.32 mm |
| April | 8.3 °C | 25.3 °C | 46.74 mm |
| May | 14.2 °C | 29.4 °C | 68.83 mm |
| June | 19.3 °C | 33.6 °C | 78.74 mm |
| July | 21.2 °C | 35.4 °C | 56.13 mm |
| August | 20.7 °C | 35.2 °C | 52.32 mm |
| September | 16.4 °C | 30.7 °C | 65.28 mm |
| October | 9.9 °C | 25.4 °C | 48.51 mm |
| November | 3.4 °C | 18.9 °C | 35.81 mm |
| December | -1.2 °C | 13.9 °C | 25.65 mm |
| Annual | 9.5 °C | 24.8 °C | 565.38 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |