Vanduser, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.9 °C (low) to 20.2 °C (high). Annual precipitation averages 1280.7 Millimeters. Vanduser is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3 °C | 6.2 °C | 91.69 mm |
| February | -1.4 °C | 9 °C | 95.5 mm |
| March | 3.1 °C | 14.4 °C | 118.62 mm |
| April | 8.6 °C | 20.7 °C | 138.68 mm |
| May | 14.3 °C | 25.8 °C | 139.7 mm |
| June | 19.1 °C | 30.6 °C | 99.82 mm |
| July | 20.9 °C | 32 °C | 106.93 mm |
| August | 19.6 °C | 31.5 °C | 77.47 mm |
| September | 15.1 °C | 28.2 °C | 87.12 mm |
| October | 8.4 °C | 22 °C | 98.55 mm |
| November | 2.9 °C | 14.2 °C | 116.33 mm |
| December | -1.2 °C | 8.1 °C | 110.24 mm |
| Annual | 8.9 °C | 20.2 °C | 1280.65 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |