Shelbina, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.1 °C (low) to 17.5 °C (high). Annual precipitation averages 1061 Millimeters. Shelbina is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.8 °C | 2.1 °C | 44.45 mm |
| February | -5.9 °C | 4.8 °C | 49.53 mm |
| March | -0.3 °C | 11.6 °C | 70.1 mm |
| April | 5.7 °C | 18.1 °C | 106.17 mm |
| May | 11.8 °C | 23.2 °C | 138.68 mm |
| June | 17.2 °C | 28.3 °C | 131.57 mm |
| July | 19.2 °C | 30.5 °C | 116.08 mm |
| August | 17.8 °C | 29.7 °C | 105.16 mm |
| September | 12.9 °C | 25.9 °C | 98.55 mm |
| October | 6.8 °C | 19.4 °C | 83.57 mm |
| November | 0.5 °C | 11.6 °C | 68.58 mm |
| December | -4.7 °C | 4.8 °C | 48.51 mm |
| Annual | 6.1 °C | 17.5 °C | 1060.95 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°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 |