Ravanna, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.1 °F (low) to 61 °F (high). Annual precipitation averages 38.4 Inches. 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 | 14.1 °F | 32.5 °F | 1.03 in. |
| February | 18.1 °F | 37.8 °F | 1.36 in. |
| March | 28.5 °F | 50.2 °F | 2.17 in. |
| April | 39.3 °F | 62.0 °F | 3.95 in. |
| May | 50.6 °F | 71.6 °F | 5.6 in. |
| June | 60.5 °F | 80.9 °F | 5.09 in. |
| July | 64.6 °F | 85.2 °F | 4.54 in. |
| August | 62.2 °F | 83.6 °F | 4.3 in. |
| September | 53.4 °F | 76.6 °F | 3.74 in. |
| October | 41.3 °F | 64.4 °F | 3.12 in. |
| November | 29.6 °F | 49.8 °F | 1.97 in. |
| December | 19.5 °F | 37.5 °F | 1.52 in. |
| Annual | 40.1 °F | 61 °F | 38.39 in. |
| 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 : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |