Kingston, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3.6 °C (low) to 14.6 °C (high). Annual precipitation averages 960.9 Millimeters. Kingston is located in USDA Plant Hardiness Zone 5b. 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 | -7.9 °C | 1.4 °C | 49.53 mm |
| February | -5.8 °C | 4.3 °C | 50.04 mm |
| March | -0.6 °C | 10.6 °C | 67.31 mm |
| April | 5.4 °C | 17.4 °C | 104.9 mm |
| May | 11.8 °C | 22.8 °C | 122.94 mm |
| June | 17 °C | 27.8 °C | 118.62 mm |
| July | 18.7 °C | 29.8 °C | 101.85 mm |
| August | 17.5 °C | 29.2 °C | 89.92 mm |
| September | 12.7 °C | 25.7 °C | 88.9 mm |
| October | 6.4 °C | 18.8 °C | 78.74 mm |
| November | 0.5 °C | 11 °C | 70.61 mm |
| December | -4.8 °C | 4.1 °C | 53.59 mm |
| Annual | 5.9 °C | 16.9 °C | 996.95 mm |
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.6 °C | -1.7 °C | 43.94 mm |
| February | -8.8 °C | 0.6 °C | 43.43 mm |
| March | -3.2 °C | 7.4 °C | 58.17 mm |
| April | 2.8 °C | 14.9 °C | 91.44 mm |
| May | 9.2 °C | 21.4 °C | 122.17 mm |
| June | 14.7 °C | 26.6 °C | 125.48 mm |
| July | 16.8 °C | 28.4 °C | 97.54 mm |
| August | 15.7 °C | 27.4 °C | 104.9 mm |
| September | 11.2 °C | 24.1 °C | 87.63 mm |
| October | 4.6 °C | 16.9 °C | 74.42 mm |
| November | -1.4 °C | 8.4 °C | 61.21 mm |
| December | -7.3 °C | 1.3 °C | 50.55 mm |
| Annual | 3.6 °C | 14.6 °C | 960.88 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |