Hymera, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.1 °F (low) to 64.3 °F (high). Annual precipitation averages 45.5 Inches. Hymera 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 | 21.2 °F | 37.4 °F | 3.32 in. |
| February | 24.1 °F | 42.4 °F | 2.56 in. |
| March | 33.2 °F | 53.3 °F | 3.47 in. |
| April | 43.8 °F | 65.3 °F | 5.07 in. |
| May | 54.1 °F | 75.1 °F | 4.7 in. |
| June | 62.7 °F | 83.3 °F | 4.71 in. |
| July | 65.7 °F | 86.1 °F | 4.41 in. |
| August | 63.8 °F | 85.2 °F | 3.07 in. |
| September | 56.0 °F | 79.7 °F | 3.59 in. |
| October | 44.6 °F | 67.7 °F | 3.69 in. |
| November | 34.3 °F | 53.8 °F | 3.77 in. |
| December | 26.1 °F | 42.0 °F | 3.16 in. |
| Annual | 44.1 °F | 64.3 °F | 45.52 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 |