Triangle, Virginia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.2 °F (low) to 67 °F (high). Annual precipitation averages 42.9 Inches. Triangle is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.6 °F | 44.3 °F | 3.05 in. |
| February | 27.3 °F | 47.9 °F | 2.63 in. |
| March | 34.1 °F | 56.2 °F | 3.74 in. |
| April | 44.3 °F | 67.8 °F | 3.04 in. |
| May | 54.2 °F | 75.5 °F | 3.79 in. |
| June | 63.0 °F | 83.8 °F | 4.14 in. |
| July | 67.9 °F | 88.3 °F | 4.38 in. |
| August | 66.1 °F | 86.4 °F | 3.72 in. |
| September | 59.4 °F | 79.7 °F | 4.23 in. |
| October | 46.9 °F | 68.5 °F | 3.62 in. |
| November | 35.8 °F | 57.7 °F | 3.04 in. |
| December | 29.6 °F | 48.4 °F | 3.47 in. |
| Annual | 46.2 °F | 67 °F | 42.85 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |