Odem, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 17 °C (low) to 27.5 °C (high). Annual precipitation averages 810 Millimeters. Odem is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.8 °C | 19.2 °C | 41.15 mm |
| February | 10.1 °C | 21.3 °C | 40.39 mm |
| March | 13.6 °C | 24.2 °C | 59.44 mm |
| April | 17.1 °C | 27.3 °C | 46.23 mm |
| May | 21.1 °C | 30.2 °C | 77.98 mm |
| June | 23.6 °C | 32.9 °C | 84.07 mm |
| July | 24.3 °C | 33.9 °C | 77.72 mm |
| August | 24.3 °C | 34.7 °C | 65.02 mm |
| September | 22.3 °C | 32.5 °C | 139.95 mm |
| October | 17.9 °C | 29.1 °C | 84.58 mm |
| November | 12.8 °C | 24.1 °C | 49.53 mm |
| December | 8.9 °C | 20.3 °C | 43.94 mm |
| Annual | 17 °C | 27.5 °C | 810 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 |