Wooster, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.4 °C (low) to 22.4 °C (high). Annual precipitation averages 1301.2 Millimeters. Wooster is located in USDA Plant Hardiness Zone 7b. 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 | -2.2 °C | 9.9 °C | 88.14 mm |
| February | -0.5 °C | 12.6 °C | 97.28 mm |
| March | 3.9 °C | 17.6 °C | 129.03 mm |
| April | 8.8 °C | 22.7 °C | 136.14 mm |
| May | 14.4 °C | 26.8 °C | 140.46 mm |
| June | 19.2 °C | 31.1 °C | 91.19 mm |
| July | 21.1 °C | 33.3 °C | 92.2 mm |
| August | 20.3 °C | 33.2 °C | 97.54 mm |
| September | 15.8 °C | 29.6 °C | 87.38 mm |
| October | 8.9 °C | 23.7 °C | 104.39 mm |
| November | 3.3 °C | 16.7 °C | 119.89 mm |
| December | -0.6 °C | 11.4 °C | 117.6 mm |
| Annual | 9.4 °C | 22.4 °C | 1301.24 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |