Viburnum, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.2 °F (low) to 66.6 °F (high). Annual precipitation averages 46.9 Inches. Viburnum 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 Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.1 °F | 42.3 °F | 2.77 in. |
| February | 26.5 °F | 47.7 °F | 2.87 in. |
| March | 34.6 °F | 57.0 °F | 4.04 in. |
| April | 44.8 °F | 68.3 °F | 5.27 in. |
| May | 54.1 °F | 75.7 °F | 5.45 in. |
| June | 62.7 °F | 83.4 °F | 4.42 in. |
| July | 66.3 °F | 87.4 °F | 3.98 in. |
| August | 64.7 °F | 86.9 °F | 3.68 in. |
| September | 57.1 °F | 79.9 °F | 3.94 in. |
| October | 46.2 °F | 69.3 °F | 3.28 in. |
| November | 35.8 °F | 56.1 °F | 4.18 in. |
| December | 26.9 °F | 45.5 °F | 3.03 in. |
| Annual | 45.2 °F | 66.6 °F | 46.91 in. |
| 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |