New Amsterdam, Indiana has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.8 °F (low) to 67.7 °F (high). Annual precipitation averages 51.1 Inches. New Amsterdam is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.8 °F | 43.0 °F | 3.76 in. |
| February | 27.4 °F | 47.7 °F | 3.65 in. |
| March | 34.7 °F | 57.4 °F | 4.82 in. |
| April | 44.5 °F | 68.8 °F | 5.11 in. |
| May | 54.4 °F | 77.2 °F | 5.61 in. |
| June | 63.3 °F | 85.0 °F | 4.79 in. |
| July | 67.0 °F | 88.1 °F | 4.38 in. |
| August | 65.0 °F | 87.3 °F | 3.2 in. |
| September | 57.6 °F | 81.8 °F | 3.82 in. |
| October | 46.2 °F | 71.1 °F | 3.76 in. |
| November | 35.5 °F | 57.5 °F | 3.81 in. |
| December | 29.1 °F | 46.9 °F | 4.42 in. |
| Annual | 45.8 °F | 67.7 °F | 51.13 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |