Bay, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.7 °F (low) to 70.8 °F (high). Annual precipitation averages 51.6 Inches. Bay 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 | 30.0 °F | 46.6 °F | 3.9 in. |
| February | 32.9 °F | 51.7 °F | 4.11 in. |
| March | 40.6 °F | 60.8 °F | 4.93 in. |
| April | 49.8 °F | 71.5 °F | 5.75 in. |
| May | 60.4 °F | 80.3 °F | 5.08 in. |
| June | 68.6 °F | 88.8 °F | 3.65 in. |
| July | 71.8 °F | 90.8 °F | 3.61 in. |
| August | 69.4 °F | 90.3 °F | 3.49 in. |
| September | 62.0 °F | 84.7 °F | 3.4 in. |
| October | 50.1 °F | 74.0 °F | 4.12 in. |
| November | 40.2 °F | 60.4 °F | 4.58 in. |
| December | 32.9 °F | 49.9 °F | 4.97 in. |
| Annual | 50.7 °F | 70.8 °F | 51.59 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 |