Blossom, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.6 °C (low) to 23.6 °C (high). Annual precipitation averages 1208.8 Millimeters. Blossom is located in USDA Plant Hardiness Zone 8a. 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 | 0.3 °C | 12.1 °C | 81.79 mm |
| February | 2.3 °C | 14.4 °C | 93.98 mm |
| March | 6.5 °C | 18.9 °C | 110.24 mm |
| April | 10.7 °C | 23.1 °C | 109.73 mm |
| May | 16.3 °C | 27.1 °C | 132.59 mm |
| June | 20.8 °C | 31.8 °C | 97.54 mm |
| July | 22.6 °C | 34 °C | 77.98 mm |
| August | 22 °C | 34.4 °C | 69.85 mm |
| September | 18.2 °C | 30.8 °C | 101.85 mm |
| October | 11.7 °C | 24.8 °C | 116.84 mm |
| November | 6.1 °C | 18.3 °C | 102.87 mm |
| December | 1.7 °C | 13.3 °C | 113.54 mm |
| Annual | 11.6 °C | 23.6 °C | 1208.8 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |