Waldron, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.1 °C (low) to 17.1 °C (high). Annual precipitation averages 1135.9 Millimeters. Waldron is located in USDA Plant Hardiness Zone 6b. 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 | -6.4 °C | 2.4 °C | 77.98 mm |
| February | -4.9 °C | 4.9 °C | 67.82 mm |
| March | -0.4 °C | 10.6 °C | 90.93 mm |
| April | 5.6 °C | 17.5 °C | 119.89 mm |
| May | 11.6 °C | 23 °C | 127.25 mm |
| June | 16.6 °C | 27.7 °C | 130.05 mm |
| July | 18.1 °C | 29.2 °C | 107.44 mm |
| August | 16.9 °C | 28.8 °C | 84.07 mm |
| September | 12.8 °C | 25.8 °C | 81.53 mm |
| October | 6.4 °C | 19 °C | 76.96 mm |
| November | 0.7 °C | 11.3 °C | 86.11 mm |
| December | -3.7 °C | 4.8 °C | 85.85 mm |
| Annual | 6.1 °C | 17.1 °C | 1135.88 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 6b : -20.6°C to -17.8°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 |