Ava, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.4 °C (low) to 19.5 °C (high). Annual precipitation averages 1190.5 Millimeters. Ava is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.8 °C | 6.4 °C | 73.66 mm |
| February | -2.9 °C | 9 °C | 73.91 mm |
| March | 1.4 °C | 14.1 °C | 110.24 mm |
| April | 6.9 °C | 20 °C | 128.02 mm |
| May | 12.2 °C | 24.2 °C | 139.95 mm |
| June | 17.1 °C | 28.8 °C | 101.85 mm |
| July | 19.3 °C | 31.2 °C | 98.81 mm |
| August | 18.4 °C | 30.9 °C | 81.03 mm |
| September | 14.1 °C | 27.1 °C | 101.85 mm |
| October | 7.7 °C | 20.8 °C | 96.77 mm |
| November | 1.9 °C | 14 °C | 110.49 mm |
| December | -2.7 °C | 7.8 °C | 73.91 mm |
| Annual | 7.4 °C | 19.5 °C | 1190.49 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |