Shallowater, Texas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 7.8 °C (low) to 23.6 °C (high). Annual precipitation averages 485.9 Millimeters. Shallowater is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.5 °C | 12.6 °C | 18.8 mm |
| February | -1.8 °C | 15.1 °C | 14.99 mm |
| March | 2.3 °C | 19.6 °C | 33.78 mm |
| April | 6.6 °C | 24.1 °C | 30.23 mm |
| May | 12.6 °C | 28.4 °C | 68.58 mm |
| June | 17.8 °C | 32.7 °C | 69.85 mm |
| July | 19.6 °C | 33.7 °C | 45.97 mm |
| August | 18.7 °C | 32.9 °C | 51.31 mm |
| September | 14.6 °C | 29 °C | 66.04 mm |
| October | 8.2 °C | 24.1 °C | 44.45 mm |
| November | 1.5 °C | 17.6 °C | 23.11 mm |
| December | -2.7 °C | 12.9 °C | 18.8 mm |
| Annual | 7.8 °C | 23.6 °C | 485.91 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |