Amo, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.5 °F (low) to 61.5 °F (high). Annual precipitation averages 44.8 Inches. Amo is located in USDA Plant Hardiness Zone 6a. 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 | 19.4 °F | 35.1 °F | 3.08 in. |
| February | 22.1 °F | 39.4 °F | 2.59 in. |
| March | 31.0 °F | 50.1 °F | 3.36 in. |
| April | 41.6 °F | 62.1 °F | 4.72 in. |
| May | 52.3 °F | 72.1 °F | 4.84 in. |
| June | 61.3 °F | 80.7 °F | 5.21 in. |
| July | 64.2 °F | 83.5 °F | 4.48 in. |
| August | 62.2 °F | 82.4 °F | 3.16 in. |
| September | 55.0 °F | 77.2 °F | 3.53 in. |
| October | 43.4 °F | 64.7 °F | 3.46 in. |
| November | 33.0 °F | 51.0 °F | 3.37 in. |
| December | 24.5 °F | 39.5 °F | 2.96 in. |
| Annual | 42.5 °F | 61.5 °F | 44.76 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 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 |