Fairfield Bay, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.4 °F (low) to 70.3 °F (high). Annual precipitation averages 53 Inches. Fairfield Bay is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.5 °F | 47.9 °F | 3.8 in. |
| February | 30.9 °F | 52.7 °F | 3.88 in. |
| March | 38.4 °F | 61.1 °F | 5.19 in. |
| April | 47.3 °F | 70.7 °F | 5.4 in. |
| May | 56.7 °F | 77.8 °F | 5.42 in. |
| June | 65.1 °F | 85.9 °F | 3.65 in. |
| July | 69.1 °F | 90.5 °F | 4.16 in. |
| August | 67.2 °F | 90.2 °F | 3.84 in. |
| September | 59.8 °F | 83.5 °F | 3.66 in. |
| October | 48.5 °F | 72.2 °F | 4.11 in. |
| November | 38.7 °F | 60.2 °F | 5.18 in. |
| December | 31.0 °F | 50.6 °F | 4.69 in. |
| Annual | 48.4 °F | 70.3 °F | 52.98 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |