Senath, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.1 °C (low) to 21.2 °C (high). Annual precipitation averages 1308.9 Millimeters. Senath is located in USDA Plant Hardiness Zone 7b. 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 | -1.8 °C | 7.4 °C | 91.44 mm |
| February | 0.1 °C | 10.3 °C | 108.71 mm |
| March | 4.4 °C | 15.4 °C | 126.75 mm |
| April | 9.8 °C | 21.7 °C | 137.41 mm |
| May | 15.7 °C | 26.7 °C | 134.37 mm |
| June | 20.2 °C | 31.3 °C | 91.44 mm |
| July | 22 °C | 32.7 °C | 107.44 mm |
| August | 20.7 °C | 32.1 °C | 83.06 mm |
| September | 16.3 °C | 28.9 °C | 81.79 mm |
| October | 9.8 °C | 23 °C | 105.16 mm |
| November | 4.2 °C | 15.2 °C | 120.14 mm |
| December | 0.1 °C | 9.2 °C | 121.16 mm |
| Annual | 10.1 °C | 21.2 °C | 1308.87 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |