Gages Lake, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.3 °C (low) to 14.2 °C (high). Annual precipitation averages 960.1 Millimeters. Gages Lake is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.4 °C | -1.2 °C | 50.29 mm |
| February | -7.9 °C | 0.8 °C | 50.8 mm |
| March | -2.8 °C | 6.8 °C | 58.17 mm |
| April | 2.9 °C | 13.7 °C | 99.06 mm |
| May | 8.8 °C | 19.9 °C | 111.25 mm |
| June | 14.4 °C | 25.5 °C | 114.3 mm |
| July | 17.4 °C | 28 °C | 94.49 mm |
| August | 16.7 °C | 27.1 °C | 92.71 mm |
| September | 12.4 °C | 23.3 °C | 90.17 mm |
| October | 5.9 °C | 16.2 °C | 81.79 mm |
| November | -0.3 °C | 8.4 °C | 62.23 mm |
| December | -6.1 °C | 1.8 °C | 54.86 mm |
| Annual | 4.3 °C | 14.2 °C | 960.12 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 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 |