Hymera, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.8 °C (low) to 17.9 °C (high). Annual precipitation averages 1156.2 Millimeters. 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 | -6 °C | 3 °C | 84.33 mm |
| February | -4.4 °C | 5.8 °C | 65.02 mm |
| March | 0.7 °C | 11.8 °C | 88.14 mm |
| April | 6.6 °C | 18.5 °C | 128.78 mm |
| May | 12.3 °C | 23.9 °C | 119.38 mm |
| June | 17.1 °C | 28.5 °C | 119.63 mm |
| July | 18.7 °C | 30.1 °C | 112.01 mm |
| August | 17.7 °C | 29.6 °C | 77.98 mm |
| September | 13.3 °C | 26.5 °C | 91.19 mm |
| October | 7 °C | 19.8 °C | 93.73 mm |
| November | 1.3 °C | 12.1 °C | 95.76 mm |
| December | -3.3 °C | 5.6 °C | 80.26 mm |
| Annual | 6.8 °C | 17.9 °C | 1156.21 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |