Courtland, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.3 °C (low) to 21.7 °C (high). Annual precipitation averages 1261.9 Millimeters. Courtland is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.3 °C | 10.4 °C | 93.22 mm |
| February | -0.6 °C | 12.2 °C | 70.36 mm |
| March | 3 °C | 16.1 °C | 105.16 mm |
| April | 8.3 °C | 22 °C | 90.42 mm |
| May | 13.5 °C | 25.9 °C | 97.03 mm |
| June | 18.2 °C | 30.2 °C | 123.7 mm |
| July | 20.6 °C | 32.2 °C | 135.89 mm |
| August | 19.8 °C | 31.2 °C | 134.37 mm |
| September | 16.5 °C | 28.2 °C | 140.72 mm |
| October | 9.7 °C | 22.8 °C | 98.04 mm |
| November | 3.7 °C | 17 °C | 82.55 mm |
| December | 0.4 °C | 12.3 °C | 90.42 mm |
| Annual | 9.3 °C | 21.7 °C | 1261.88 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |