Morganza, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14 °C (low) to 25.5 °C (high). Annual precipitation averages 1573.3 Millimeters. Morganza is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.7 °C | 16.3 °C | 169.42 mm |
| February | 6.6 °C | 18.6 °C | 130.56 mm |
| March | 10 °C | 22.3 °C | 116.84 mm |
| April | 13.4 °C | 25.4 °C | 132.33 mm |
| May | 18.2 °C | 29.2 °C | 135.89 mm |
| June | 21.7 °C | 32 °C | 151.64 mm |
| July | 22.7 °C | 32.7 °C | 125.48 mm |
| August | 22.4 °C | 33.1 °C | 129.03 mm |
| September | 20.1 °C | 30.9 °C | 115.32 mm |
| October | 14 °C | 26.6 °C | 113.79 mm |
| November | 8.3 °C | 21.2 °C | 117.6 mm |
| December | 5.6 °C | 17.4 °C | 135.38 mm |
| Annual | 14 °C | 25.5 °C | 1573.28 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |