Varnado, Louisiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.3 °C (low) to 25.8 °C (high). Annual precipitation averages 1623.1 Millimeters. Varnado is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4 °C | 16.4 °C | 150.11 mm |
| February | 5.8 °C | 18.6 °C | 130.81 mm |
| March | 9.2 °C | 22.3 °C | 141.48 mm |
| April | 12.7 °C | 25.9 °C | 132.08 mm |
| May | 17.2 °C | 29.7 °C | 117.6 mm |
| June | 21.1 °C | 32.6 °C | 163.32 mm |
| July | 22.3 °C | 33.4 °C | 172.72 mm |
| August | 22.2 °C | 33.4 °C | 151.89 mm |
| September | 19.7 °C | 31.3 °C | 111.76 mm |
| October | 13.3 °C | 27.1 °C | 104.39 mm |
| November | 7.7 °C | 21.3 °C | 103.89 mm |
| December | 4.9 °C | 17.5 °C | 143 mm |
| Annual | 13.3 °C | 25.8 °C | 1623.05 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |