Huntington, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.9 °C (low) to 15.9 °C (high). Annual precipitation averages 1028.7 Millimeters. Huntington 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 | -7.9 °C | 0.6 °C | 67.06 mm |
| February | -6.7 °C | 2.7 °C | 54.61 mm |
| March | -2.1 °C | 8.8 °C | 70.1 mm |
| April | 3.9 °C | 16.2 °C | 100.58 mm |
| May | 9.9 °C | 22.4 °C | 117.6 mm |
| June | 15.3 °C | 27.2 °C | 116.59 mm |
| July | 17.2 °C | 28.9 °C | 107.95 mm |
| August | 16 °C | 28.2 °C | 96.77 mm |
| September | 11.7 °C | 24.9 °C | 78.23 mm |
| October | 5.7 °C | 17.9 °C | 76.96 mm |
| November | 0.2 °C | 9.9 °C | 78.99 mm |
| December | -4.7 °C | 3.3 °C | 63.25 mm |
| Annual | 4.9 °C | 15.9 °C | 1028.69 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 |