Kampsville, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.8 °F (low) to 64.6 °F (high). Annual precipitation averages 40.8 Inches. 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 | 20.1 °F | 37.2 °F | 2.3 in. |
| February | 23.5 °F | 42.5 °F | 2.17 in. |
| March | 32.2 °F | 53.5 °F | 3.06 in. |
| April | 42.9 °F | 65.9 °F | 4.32 in. |
| May | 54.1 °F | 75.2 °F | 4.86 in. |
| June | 63.0 °F | 83.9 °F | 4.53 in. |
| July | 66.7 °F | 87.2 °F | 3.92 in. |
| August | 64.3 °F | 86.2 °F | 3.43 in. |
| September | 55.8 °F | 80.0 °F | 3.42 in. |
| October | 44.5 °F | 67.9 °F | 3.12 in. |
| November | 33.8 °F | 53.9 °F | 3.22 in. |
| December | 24.8 °F | 41.9 °F | 2.44 in. |
| Annual | 43.8 °F | 64.6 °F | 40.79 in. |
| 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 : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |