Mayflower, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.8 °C (low) to 22.7 °C (high). Annual precipitation averages 1290.1 Millimeters. Mayflower is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.6 °C | 10.3 °C | 90.68 mm |
| February | 0.1 °C | 13 °C | 98.3 mm |
| March | 4.5 °C | 17.9 °C | 125.48 mm |
| April | 9.3 °C | 22.9 °C | 133.86 mm |
| May | 14.9 °C | 27 °C | 135.89 mm |
| June | 19.6 °C | 31.6 °C | 90.42 mm |
| July | 21.5 °C | 33.8 °C | 93.73 mm |
| August | 20.7 °C | 33.4 °C | 84.58 mm |
| September | 16.2 °C | 29.9 °C | 84.58 mm |
| October | 9.4 °C | 24.1 °C | 103.89 mm |
| November | 3.7 °C | 16.9 °C | 122.94 mm |
| December | -0.2 °C | 11.7 °C | 125.73 mm |
| Annual | 9.8 °C | 22.7 °C | 1290.08 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |