Landess, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.7 °F (low) to 60.6 °F (high). Annual precipitation averages 41 Inches. Landess 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 | 18.4 °F | 33.1 °F | 2.7 in. |
| February | 20.4 °F | 37.1 °F | 2.23 in. |
| March | 29.5 °F | 47.9 °F | 3.01 in. |
| April | 40.0 °F | 60.9 °F | 4.09 in. |
| May | 50.9 °F | 72.1 °F | 4.5 in. |
| June | 60.9 °F | 80.7 °F | 4.61 in. |
| July | 63.9 °F | 83.4 °F | 4.01 in. |
| August | 61.6 °F | 81.9 °F | 3.72 in. |
| September | 54.0 °F | 76.9 °F | 3.29 in. |
| October | 43.0 °F | 64.3 °F | 3.08 in. |
| November | 33.0 °F | 50.0 °F | 3.23 in. |
| December | 24.2 °F | 38.3 °F | 2.57 in. |
| Annual | 41.7 °F | 60.6 °F | 41.04 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 |