Seelyville, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.3 °F (low) to 63.6 °F (high). Annual precipitation averages 44.5 Inches. Seelyville 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 | 20.2 °F | 36.3 °F | 3.1 in. |
| February | 23.3 °F | 41.5 °F | 2.53 in. |
| March | 32.3 °F | 52.2 °F | 3.39 in. |
| April | 42.9 °F | 64.3 °F | 4.89 in. |
| May | 53.3 °F | 74.6 °F | 4.68 in. |
| June | 62.2 °F | 82.9 °F | 5.18 in. |
| July | 65.2 °F | 85.8 °F | 4.31 in. |
| August | 62.9 °F | 84.7 °F | 2.87 in. |
| September | 55.1 °F | 79.4 °F | 3.24 in. |
| October | 43.8 °F | 67.1 °F | 3.74 in. |
| November | 33.5 °F | 52.8 °F | 3.61 in. |
| December | 25.2 °F | 41.0 °F | 2.97 in. |
| Annual | 43.3 °F | 63.6 °F | 44.51 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 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |