Campbellsburg, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.1 °C (low) to 18.3 °C (high). Annual precipitation averages 1259.6 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.9 °C | 4.1 °C | 95 mm |
| February | -3.6 °C | 7.1 °C | 80.77 mm |
| March | 1 °C | 12.3 °C | 111.51 mm |
| April | 6.5 °C | 19.3 °C | 134.11 mm |
| May | 12.3 °C | 23.9 °C | 138.68 mm |
| June | 16.8 °C | 28.2 °C | 127.25 mm |
| July | 18.7 °C | 29.8 °C | 107.44 mm |
| August | 17.7 °C | 29.5 °C | 87.12 mm |
| September | 13.6 °C | 26.3 °C | 91.44 mm |
| October | 7.4 °C | 20.1 °C | 89.66 mm |
| November | 1.9 °C | 12.4 °C | 97.79 mm |
| December | -2.2 °C | 6.2 °C | 98.81 mm |
| Annual | 7.1 °C | 18.3 °C | 1259.58 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 |