Orchard Grass Hills, Kentucky has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 46.1 °F (low) to 66.5 °F (high). Annual precipitation averages 50.5 Inches. Orchard Grass Hills 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 | 24.8 °F | 41.8 °F | 3.75 in. |
| February | 27.4 °F | 46.3 °F | 3.63 in. |
| March | 35.0 °F | 56.1 °F | 4.64 in. |
| April | 45.0 °F | 67.9 °F | 5.01 in. |
| May | 55.4 °F | 76.2 °F | 5.39 in. |
| June | 63.2 °F | 84.1 °F | 4.98 in. |
| July | 66.8 °F | 87.2 °F | 4.49 in. |
| August | 65.7 °F | 86.6 °F | 3.41 in. |
| September | 58.4 °F | 80.9 °F | 3.53 in. |
| October | 46.3 °F | 69.5 °F | 3.65 in. |
| November | 36.2 °F | 56.2 °F | 3.72 in. |
| December | 29.0 °F | 45.6 °F | 4.34 in. |
| Annual | 46.1 °F | 66.5 °F | 50.54 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |