Sanford, Texas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 7.6 °C (low) to 22.7 °C (high). Annual precipitation averages 490.2 Millimeters. Sanford is located in USDA Plant Hardiness Zone 7a. 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 | -3.9 °C | 10.8 °C | 14.73 mm |
| February | -2.7 °C | 12.7 °C | 10.41 mm |
| March | 1.7 °C | 17.8 °C | 30.99 mm |
| April | 6.3 °C | 22.3 °C | 45.97 mm |
| May | 11.9 °C | 27.4 °C | 58.17 mm |
| June | 17.6 °C | 32.6 °C | 67.82 mm |
| July | 20 °C | 34.8 °C | 63.25 mm |
| August | 19.2 °C | 33.7 °C | 75.69 mm |
| September | 15.1 °C | 29.7 °C | 40.64 mm |
| October | 8.2 °C | 23.4 °C | 49.53 mm |
| November | 1.4 °C | 16.8 °C | 17.27 mm |
| December | -3.2 °C | 10.9 °C | 15.75 mm |
| Annual | 7.6 °C | 22.7 °C | 490.22 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |