Buffalo, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.6 °C (low) to 19.3 °C (high). Annual precipitation averages 1337 Millimeters. Buffalo is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.7 °C | 6.1 °C | 99.82 mm |
| February | -2.2 °C | 8.7 °C | 100.84 mm |
| March | 1.6 °C | 13.7 °C | 124.71 mm |
| April | 6.9 °C | 19.9 °C | 115.57 mm |
| May | 12.6 °C | 24.3 °C | 146.56 mm |
| June | 17 °C | 28.8 °C | 129.79 mm |
| July | 19 °C | 30.3 °C | 120.9 mm |
| August | 18.1 °C | 29.9 °C | 92.96 mm |
| September | 14.2 °C | 27 °C | 97.03 mm |
| October | 7.8 °C | 21.2 °C | 99.31 mm |
| November | 2 °C | 13.8 °C | 92.46 mm |
| December | -1.6 °C | 8.1 °C | 117.09 mm |
| Annual | 7.6 °C | 19.3 °C | 1337.04 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |