Hayes, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 59.4 °F (low) to 77.6 °F (high). Annual precipitation averages 61.2 Inches. Hayes is located in USDA Plant Hardiness Zone 9b. The growing season typically runs from the last frost around Feb. 1 - Feb. 10 through the first frost around Dec. 11 - Dec. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 42.3 °F | 60.7 °F | 5.8 in. |
| February | 45.9 °F | 64.5 °F | 4.09 in. |
| March | 52.2 °F | 71.0 °F | 3.51 in. |
| April | 59.2 °F | 77.1 °F | 4.86 in. |
| May | 67.2 °F | 83.7 °F | 4.94 in. |
| June | 73.1 °F | 89.1 °F | 6.61 in. |
| July | 74.8 °F | 90.8 °F | 5.91 in. |
| August | 74.2 °F | 91.5 °F | 5.95 in. |
| September | 70.0 °F | 88.2 °F | 5.54 in. |
| October | 59.9 °F | 80.7 °F | 4.48 in. |
| November | 50.0 °F | 70.4 °F | 4.81 in. |
| December | 44.3 °F | 63.0 °F | 4.65 in. |
| Annual | 59.4 °F | 77.6 °F | 61.15 in. |
| Average First Frost Date | Dec. 11 - Dec. 20 |
| Average Last Frost Date | Feb. 1 - Feb. 10 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9b : 25°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |