Westway, Texas has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 9.6 °C (low) to 25.7 °C (high). Annual precipitation averages 223.3 Millimeters. Westway 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 | -1.1 °C | 14.7 °C | 8.64 mm |
| February | 1.3 °C | 17.6 °C | 10.67 mm |
| March | 4.9 °C | 21.9 °C | 7.62 mm |
| April | 8.6 °C | 26.2 °C | 4.06 mm |
| May | 13.4 °C | 31.1 °C | 4.32 mm |
| June | 18.8 °C | 35.8 °C | 13.21 mm |
| July | 20.7 °C | 35.3 °C | 41.66 mm |
| August | 20.1 °C | 34.1 °C | 44.7 mm |
| September | 16.5 °C | 31.3 °C | 44.96 mm |
| October | 10.1 °C | 26.3 °C | 17.02 mm |
| November | 3.2 °C | 19.7 °C | 8.13 mm |
| December | -1.1 °C | 14.3 °C | 18.29 mm |
| Annual | 9.6 °C | 25.7 °C | 223.28 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| 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 | Normal |
| Köppen Climate Classification | BWk - Cold Desert Climate |