Campbellsburg, Kentucky has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.7 °C (low) to 18.3 °C (high). Annual precipitation averages 1255.5 Millimeters. Campbellsburg is located in USDA Plant Hardiness Zone 6b. 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 | -5.2 °C | 4.6 °C | 90.93 mm |
| February | -3.6 °C | 7.1 °C | 88.39 mm |
| March | 0.4 °C | 12.4 °C | 112.01 mm |
| April | 6.2 °C | 18.7 °C | 122.94 mm |
| May | 12.1 °C | 23.6 °C | 137.41 mm |
| June | 16.2 °C | 28.5 °C | 127.51 mm |
| July | 18.3 °C | 29.9 °C | 110.49 mm |
| August | 17.3 °C | 29.2 °C | 94.23 mm |
| September | 13.3 °C | 26.2 °C | 89.41 mm |
| October | 7.1 °C | 20.2 °C | 88.65 mm |
| November | 1.2 °C | 12.7 °C | 90.17 mm |
| December | -2.6 °C | 6.8 °C | 103.38 mm |
| Annual | 6.7 °C | 18.3 °C | 1255.52 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 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |