Wanatah, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.1 °F (low) to 59.5 °F (high). Annual precipitation averages 39.7 Inches. Wanatah is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.4 °F | 31.9 °F | 2.32 in. |
| February | 19.1 °F | 35.7 °F | 2.09 in. |
| March | 27.7 °F | 46.6 °F | 2.38 in. |
| April | 37.9 °F | 59.5 °F | 3.58 in. |
| May | 49.3 °F | 70.6 °F | 4.05 in. |
| June | 59.1 °F | 79.9 °F | 4.48 in. |
| July | 62.3 °F | 83.0 °F | 4.23 in. |
| August | 60.5 °F | 81.3 °F | 4.14 in. |
| September | 52.8 °F | 75.9 °F | 3.42 in. |
| October | 41.9 °F | 63.5 °F | 3.87 in. |
| November | 31.9 °F | 49.2 °F | 2.89 in. |
| December | 22.5 °F | 37.1 °F | 2.25 in. |
| Annual | 40.1 °F | 59.5 °F | 39.7 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°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 |