Tuscumbia, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.4 °C (low) to 19.1 °C (high). Annual precipitation averages 1112.3 Millimeters. Tuscumbia 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.3 °C | 5.3 °C | 57.15 mm |
| February | -3.5 °C | 7.8 °C | 54.36 mm |
| March | 1.2 °C | 13.5 °C | 79.76 mm |
| April | 6.8 °C | 19.6 °C | 124.46 mm |
| May | 12.7 °C | 24.1 °C | 136.91 mm |
| June | 17.6 °C | 28.6 °C | 114.3 mm |
| July | 19.9 °C | 31.1 °C | 106.43 mm |
| August | 18.9 °C | 30.7 °C | 101.09 mm |
| September | 14.1 °C | 26.8 °C | 109.47 mm |
| October | 7.7 °C | 20.8 °C | 85.6 mm |
| November | 1.8 °C | 13.5 °C | 82.3 mm |
| December | -3.1 °C | 7.4 °C | 60.45 mm |
| Annual | 7.4 °C | 19.1 °C | 1112.28 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |