Kampsville, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.6 °C (low) to 18.1 °C (high). Annual precipitation averages 1036.1 Millimeters. Kampsville 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 | -6.6 °C | 2.9 °C | 58.42 mm |
| February | -4.7 °C | 5.8 °C | 55.12 mm |
| March | 0.1 °C | 11.9 °C | 77.72 mm |
| April | 6.1 °C | 18.8 °C | 109.73 mm |
| May | 12.3 °C | 24 °C | 123.44 mm |
| June | 17.2 °C | 28.8 °C | 115.06 mm |
| July | 19.3 °C | 30.7 °C | 99.57 mm |
| August | 17.9 °C | 30.1 °C | 87.12 mm |
| September | 13.2 °C | 26.7 °C | 86.87 mm |
| October | 6.9 °C | 19.9 °C | 79.25 mm |
| November | 1 °C | 12.2 °C | 81.79 mm |
| December | -4 °C | 5.5 °C | 61.98 mm |
| Annual | 6.6 °C | 18.1 °C | 1036.07 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 |