Indian Creek, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.3 °F (low) to 58.3 °F (high). Annual precipitation averages 38 Inches. Indian Creek is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.6 °F | 30.6 °F | 1.96 in. |
| February | 18.3 °F | 34.3 °F | 1.98 in. |
| March | 27.5 °F | 45.2 °F | 2.32 in. |
| April | 37.8 °F | 57.4 °F | 3.85 in. |
| May | 48.5 °F | 68.6 °F | 4.46 in. |
| June | 58.6 °F | 78.9 °F | 4.48 in. |
| July | 64.0 °F | 83.3 °F | 3.84 in. |
| August | 62.7 °F | 81.4 °F | 3.86 in. |
| September | 54.8 °F | 74.6 °F | 3.42 in. |
| October | 43.0 °F | 61.9 °F | 3.27 in. |
| November | 31.6 °F | 47.8 °F | 2.41 in. |
| December | 21.5 °F | 35.9 °F | 2.1 in. |
| Annual | 40.3 °F | 58.3 °F | 37.95 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |