Shelbina, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43 °F (low) to 63.5 °F (high). Annual precipitation averages 41.8 Inches. 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 | 18.0 °F | 35.8 °F | 1.75 in. |
| February | 21.4 °F | 40.7 °F | 1.95 in. |
| March | 31.5 °F | 52.8 °F | 2.76 in. |
| April | 42.2 °F | 64.5 °F | 4.18 in. |
| May | 53.2 °F | 73.8 °F | 5.46 in. |
| June | 62.9 °F | 83.0 °F | 5.18 in. |
| July | 66.5 °F | 86.9 °F | 4.57 in. |
| August | 64.1 °F | 85.4 °F | 4.14 in. |
| September | 55.3 °F | 78.7 °F | 3.88 in. |
| October | 44.2 °F | 66.9 °F | 3.29 in. |
| November | 32.9 °F | 52.8 °F | 2.7 in. |
| December | 23.5 °F | 40.6 °F | 1.91 in. |
| Annual | 43 °F | 63.5 °F | 41.77 in. |
| 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 : -10°F to -5°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 |