Glasgow, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 44.3 °F (low) to 68 °F (high). Annual precipitation averages 46.7 Inches. Glasgow is located in USDA Plant Hardiness Zone 7b. 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 | 25.3 °F | 46.4 °F | 3.52 in. |
| February | 26.8 °F | 50.4 °F | 2.93 in. |
| March | 33.2 °F | 58.6 °F | 3.92 in. |
| April | 42.6 °F | 69.3 °F | 4.19 in. |
| May | 52.3 °F | 76.3 °F | 4.35 in. |
| June | 60.7 °F | 83.9 °F | 4.23 in. |
| July | 64.7 °F | 87.7 °F | 3.98 in. |
| August | 63.5 °F | 85.6 °F | 3.37 in. |
| September | 56.4 °F | 79.2 °F | 4.85 in. |
| October | 44.2 °F | 69.3 °F | 3.73 in. |
| November | 33.7 °F | 59.3 °F | 3.85 in. |
| December | 27.7 °F | 49.6 °F | 3.77 in. |
| Annual | 44.3 °F | 68 °F | 46.69 in. |
| 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |