Eldon, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.4 °C (low) to 19 °C (high). Annual precipitation averages 1113.5 Millimeters. Eldon is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.6 °C | 4.8 °C | 55.63 mm |
| February | -3.4 °C | 7.7 °C | 52.83 mm |
| March | 1.3 °C | 13.6 °C | 74.17 mm |
| April | 6.8 °C | 19.6 °C | 125.48 mm |
| May | 12.6 °C | 24.2 °C | 133.86 mm |
| June | 17.7 °C | 28.7 °C | 120.14 mm |
| July | 19.9 °C | 31.1 °C | 106.68 mm |
| August | 18.9 °C | 30.7 °C | 100.08 mm |
| September | 14.3 °C | 26.6 °C | 115.57 mm |
| October | 8 °C | 20.6 °C | 89.15 mm |
| November | 1.9 °C | 12.8 °C | 81.53 mm |
| December | -3.2 °C | 7.1 °C | 58.42 mm |
| Annual | 7.4 °C | 19 °C | 1113.54 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 |