Plano, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.9 °F (low) to 68.4 °F (high). Annual precipitation averages 52.4 Inches. Plano is located in USDA Plant Hardiness Zone 7a. 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 | 26.6 °F | 44.7 °F | 3.85 in. |
| February | 29.2 °F | 49.2 °F | 4.31 in. |
| March | 36.4 °F | 58.4 °F | 4.94 in. |
| April | 45.6 °F | 69.0 °F | 4.95 in. |
| May | 56.0 °F | 77.3 °F | 5.35 in. |
| June | 64.0 °F | 85.7 °F | 4.81 in. |
| July | 67.7 °F | 88.7 °F | 4.56 in. |
| August | 65.9 °F | 87.7 °F | 3.53 in. |
| September | 58.6 °F | 82.0 °F | 3.87 in. |
| October | 46.5 °F | 71.3 °F | 3.66 in. |
| November | 36.0 °F | 58.2 °F | 3.77 in. |
| December | 30.3 °F | 48.2 °F | 4.83 in. |
| Annual | 46.9 °F | 68.4 °F | 52.43 in. |
| 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |