Dyer, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50 °F (low) to 73 °F (high). Annual precipitation averages 50.2 Inches. Dyer 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 | 28.9 °F | 50.6 °F | 3.38 in. |
| February | 32.5 °F | 55.2 °F | 2.91 in. |
| March | 40.1 °F | 64.0 °F | 4.47 in. |
| April | 48.7 °F | 73.4 °F | 4.92 in. |
| May | 58.6 °F | 80.6 °F | 5.88 in. |
| June | 67.1 °F | 88.6 °F | 4.17 in. |
| July | 70.6 °F | 93.4 °F | 3.77 in. |
| August | 69.5 °F | 93.1 °F | 3.81 in. |
| September | 62.2 °F | 86.0 °F | 3.98 in. |
| October | 50.1 °F | 75.3 °F | 4.4 in. |
| November | 39.5 °F | 63.1 °F | 4.64 in. |
| December | 31.8 °F | 52.7 °F | 3.85 in. |
| Annual | 50 °F | 73 °F | 50.18 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |