Idaville, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41 °F (low) to 60.6 °F (high). Annual precipitation averages 41.1 Inches. Idaville 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 | 17.3 °F | 32.8 °F | 2.69 in. |
| February | 20.0 °F | 36.8 °F | 2.19 in. |
| March | 29.0 °F | 48.4 °F | 2.84 in. |
| April | 39.4 °F | 61.2 °F | 3.92 in. |
| May | 50.7 °F | 72.2 °F | 4.32 in. |
| June | 60.4 °F | 80.9 °F | 4.77 in. |
| July | 63.0 °F | 83.5 °F | 4.61 in. |
| August | 61.0 °F | 82.2 °F | 3.94 in. |
| September | 53.3 °F | 77.3 °F | 3.21 in. |
| October | 42.1 °F | 64.5 °F | 3.16 in. |
| November | 32.1 °F | 49.8 °F | 3.02 in. |
| December | 23.2 °F | 37.8 °F | 2.45 in. |
| Annual | 41 °F | 60.6 °F | 41.12 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |