Poneto, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.1 °F (low) to 60.6 °F (high). Annual precipitation averages 40.9 Inches. Poneto 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 | 17.8 °F | 33.2 °F | 2.66 in. |
| February | 20.1 °F | 37.0 °F | 2.25 in. |
| March | 28.6 °F | 47.8 °F | 2.86 in. |
| April | 39.3 °F | 60.8 °F | 4.0 in. |
| May | 50.4 °F | 71.7 °F | 4.5 in. |
| June | 60.4 °F | 80.8 °F | 4.64 in. |
| July | 63.2 °F | 84.0 °F | 4.36 in. |
| August | 61.0 °F | 82.3 °F | 3.93 in. |
| September | 53.4 °F | 76.9 °F | 3.14 in. |
| October | 42.4 °F | 64.6 °F | 2.91 in. |
| November | 32.4 °F | 50.1 °F | 3.1 in. |
| December | 23.9 °F | 38.2 °F | 2.55 in. |
| Annual | 41.1 °F | 60.6 °F | 40.9 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°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 |