Avoca, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.1 °F (low) to 64.9 °F (high). Annual precipitation averages 48.9 Inches. Avoca 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 | 21.4 °F | 38.9 °F | 3.55 in. |
| February | 24.2 °F | 43.9 °F | 2.9 in. |
| March | 31.6 °F | 53.8 °F | 4.03 in. |
| April | 42.1 °F | 66.0 °F | 5.2 in. |
| May | 52.2 °F | 75.1 °F | 5.68 in. |
| June | 61.4 °F | 83.1 °F | 5.14 in. |
| July | 64.6 °F | 86.5 °F | 4.39 in. |
| August | 62.7 °F | 85.7 °F | 3.56 in. |
| September | 55.1 °F | 79.9 °F | 3.51 in. |
| October | 43.2 °F | 68.2 °F | 3.55 in. |
| November | 33.3 °F | 54.5 °F | 3.85 in. |
| December | 25.7 °F | 43.3 °F | 3.54 in. |
| Annual | 43.1 °F | 64.9 °F | 48.9 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 |