Ravanna, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.5 °C (low) to 16.1 °C (high). Annual precipitation averages 975.1 Millimeters. Ravanna is located in USDA Plant Hardiness Zone 5b. 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 | -9.9 °C | 0.3 °C | 26.16 mm |
| February | -7.7 °C | 3.2 °C | 34.54 mm |
| March | -1.9 °C | 10.1 °C | 55.12 mm |
| April | 4.1 °C | 16.7 °C | 100.33 mm |
| May | 10.3 °C | 22 °C | 142.24 mm |
| June | 15.8 °C | 27.2 °C | 129.29 mm |
| July | 18.1 °C | 29.6 °C | 115.32 mm |
| August | 16.8 °C | 28.7 °C | 109.22 mm |
| September | 11.9 °C | 24.8 °C | 95 mm |
| October | 5.2 °C | 18 °C | 79.25 mm |
| November | -1.3 °C | 9.9 °C | 50.04 mm |
| December | -6.9 °C | 3.1 °C | 38.61 mm |
| Annual | 4.5 °C | 16.1 °C | 975.12 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |