Bloomington, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 16.3 °C (low) to 26.7 °C (high). Annual precipitation averages 1006.3 Millimeters. Bloomington is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.7 °C | 18.1 °C | 69.85 mm |
| February | 8.9 °C | 20 °C | 51.31 mm |
| March | 12.8 °C | 22.9 °C | 73.91 mm |
| April | 16.1 °C | 26.2 °C | 68.83 mm |
| May | 20.4 °C | 29.6 °C | 109.47 mm |
| June | 23.5 °C | 32.4 °C | 106.93 mm |
| July | 24.2 °C | 33.7 °C | 82.8 mm |
| August | 24.1 °C | 34.4 °C | 81.79 mm |
| September | 21.8 °C | 32.2 °C | 125.98 mm |
| October | 17.2 °C | 28.4 °C | 97.28 mm |
| November | 11.9 °C | 22.9 °C | 72.9 mm |
| December | 8.1 °C | 19 °C | 65.28 mm |
| Annual | 16.3 °C | 26.7 °C | 1006.33 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°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 |