Brazos Country, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.7 °C (low) to 26.5 °C (high). Annual precipitation averages 1193.5 Millimeters. Brazos Country is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 21 - Dec. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.4 °C | 17.1 °C | 95.25 mm |
| February | 7.5 °C | 19 °C | 69.09 mm |
| March | 11 °C | 22.7 °C | 92.71 mm |
| April | 14.4 °C | 26.3 °C | 96.52 mm |
| May | 18.9 °C | 30.1 °C | 115.82 mm |
| June | 22.2 °C | 32.9 °C | 117.09 mm |
| July | 22.9 °C | 34.3 °C | 74.93 mm |
| August | 22.8 °C | 35.2 °C | 104.9 mm |
| September | 20.4 °C | 32.3 °C | 111.25 mm |
| October | 15 °C | 27.9 °C | 118.62 mm |
| November | 9.8 °C | 22.3 °C | 103.89 mm |
| December | 6.3 °C | 18.1 °C | 93.47 mm |
| Annual | 14.7 °C | 26.5 °C | 1193.54 mm |
| Average First Frost Date | Dec. 21 - Dec. 31 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |