Oil Trough, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.3 °F (low) to 70.6 °F (high). Annual precipitation averages 50.8 Inches. Oil Trough 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 | 29.5 °F | 47.1 °F | 3.72 in. |
| February | 32.5 °F | 52.0 °F | 3.93 in. |
| March | 40.4 °F | 61.2 °F | 4.79 in. |
| April | 49.5 °F | 71.2 °F | 5.35 in. |
| May | 59.5 °F | 79.8 °F | 5.33 in. |
| June | 68.1 °F | 87.9 °F | 3.57 in. |
| July | 71.5 °F | 90.8 °F | 3.77 in. |
| August | 69.3 °F | 90.2 °F | 3.39 in. |
| September | 61.5 °F | 83.8 °F | 3.35 in. |
| October | 49.6 °F | 73.5 °F | 3.96 in. |
| November | 39.8 °F | 60.2 °F | 4.73 in. |
| December | 32.4 °F | 49.9 °F | 4.87 in. |
| Annual | 50.3 °F | 70.6 °F | 50.76 in. |
| 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 : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |