Oden, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.3 °C (low) to 22.6 °C (high). Annual precipitation averages 1460 Millimeters. Oden is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.6 °C | 10.8 °C | 96.01 mm |
| February | 0.1 °C | 13.2 °C | 98.3 mm |
| March | 3.9 °C | 17.8 °C | 121.92 mm |
| April | 8.6 °C | 22.8 °C | 141.73 mm |
| May | 14 °C | 26.5 °C | 165.35 mm |
| June | 18.5 °C | 30.9 °C | 122.68 mm |
| July | 20.3 °C | 33.4 °C | 105.41 mm |
| August | 19.7 °C | 33.3 °C | 103.12 mm |
| September | 15.6 °C | 29.6 °C | 105.66 mm |
| October | 9 °C | 23.8 °C | 128.27 mm |
| November | 3.7 °C | 17.1 °C | 132.33 mm |
| December | -0.3 °C | 12.1 °C | 139.19 mm |
| Annual | 9.3 °C | 22.6 °C | 1459.97 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |