Redfield, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.9 °C (low) to 25 °C (high). Annual precipitation averages 1302.5 Millimeters. Redfield is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.8 °C | 14.6 °C | 119.38 mm |
| February | 4.7 °C | 16.9 °C | 105.16 mm |
| March | 8.4 °C | 20.8 °C | 116.08 mm |
| April | 12.2 °C | 24.8 °C | 111.25 mm |
| May | 17.3 °C | 28.7 °C | 115.06 mm |
| June | 21.2 °C | 32.2 °C | 120.4 mm |
| July | 22.5 °C | 33.9 °C | 75.95 mm |
| August | 22.2 °C | 34.6 °C | 84.07 mm |
| September | 19.1 °C | 31.3 °C | 100.33 mm |
| October | 13.2 °C | 26.2 °C | 114.05 mm |
| November | 7.6 °C | 20.1 °C | 114.05 mm |
| December | 3.7 °C | 15.5 °C | 126.75 mm |
| Annual | 12.9 °C | 25 °C | 1302.53 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |