Fredericksburg, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.8 °C (low) to 20.1 °C (high). Annual precipitation averages 1108.2 Millimeters. Fredericksburg is located in USDA Plant Hardiness Zone 7b. 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 | -3.1 °C | 7.9 °C | 77.72 mm |
| February | -2.3 °C | 9.7 °C | 66.04 mm |
| March | 1.4 °C | 14 °C | 96.01 mm |
| April | 6.6 °C | 20.3 °C | 83.57 mm |
| May | 12.1 °C | 24.8 °C | 103.63 mm |
| June | 17.1 °C | 29.3 °C | 103.63 mm |
| July | 19.7 °C | 31.7 °C | 115.57 mm |
| August | 18.4 °C | 30.7 °C | 92.2 mm |
| September | 14.9 °C | 27.1 °C | 110.24 mm |
| October | 8 °C | 21.2 °C | 90.17 mm |
| November | 2.2 °C | 15.1 °C | 81.79 mm |
| December | -1.3 °C | 9.8 °C | 87.63 mm |
| Annual | 7.8 °C | 20.1 °C | 1108.2 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |