Emerson, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 52.3 °F (low) to 75.5 °F (high). Annual precipitation averages 55.6 Inches. Emerson is located in USDA Plant Hardiness Zone 8b. 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 | 33.7 °F | 55.8 °F | 4.75 in. |
| February | 36.3 °F | 59.9 °F | 4.81 in. |
| March | 43.3 °F | 68.0 °F | 5.67 in. |
| April | 50.8 °F | 75.5 °F | 5.55 in. |
| May | 60.4 °F | 82.5 °F | 4.93 in. |
| June | 68.2 °F | 89.3 °F | 4.31 in. |
| July | 71.3 °F | 92.9 °F | 3.82 in. |
| August | 70.3 °F | 93.2 °F | 3.33 in. |
| September | 63.7 °F | 87.6 °F | 3.9 in. |
| October | 51.7 °F | 77.3 °F | 4.91 in. |
| November | 42.0 °F | 65.9 °F | 4.23 in. |
| December | 35.8 °F | 57.8 °F | 5.4 in. |
| Annual | 52.3 °F | 75.5 °F | 55.61 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 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |