Strasburg, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6.4 °C (low) to 18.6 °C (high). Annual precipitation averages 998.5 Millimeters. Strasburg is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.6 °C | 5.8 °C | 66.8 mm |
| February | -3.6 °C | 7.7 °C | 54.86 mm |
| March | -0.1 °C | 12.2 °C | 80.52 mm |
| April | 5.4 °C | 18.8 °C | 82.3 mm |
| May | 10.6 °C | 23.3 °C | 104.39 mm |
| June | 15.7 °C | 28.1 °C | 112.27 mm |
| July | 18.2 °C | 30.5 °C | 93.73 mm |
| August | 17.2 °C | 29.5 °C | 79.5 mm |
| September | 13.1 °C | 25.9 °C | 108.71 mm |
| October | 6.6 °C | 19.7 °C | 77.72 mm |
| November | 1.2 °C | 13.4 °C | 67.82 mm |
| December | -2.4 °C | 7.9 °C | 69.85 mm |
| Annual | 6.4 °C | 18.6 °C | 998.47 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |