Neosho, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8 °C (low) to 20.2 °C (high). Annual precipitation averages 1240.3 Millimeters. Neosho is located in USDA Plant Hardiness Zone 7a. 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 | -4.3 °C | 7.3 °C | 60.96 mm |
| February | -2.5 °C | 9.8 °C | 58.93 mm |
| March | 2.3 °C | 15.1 °C | 95.5 mm |
| April | 7.3 °C | 20.3 °C | 138.43 mm |
| May | 12.9 °C | 24.5 °C | 168.15 mm |
| June | 18 °C | 29.2 °C | 128.78 mm |
| July | 20.3 °C | 31.8 °C | 103.12 mm |
| August | 19.3 °C | 31.7 °C | 94.74 mm |
| September | 14.7 °C | 27.6 °C | 121.16 mm |
| October | 8.2 °C | 21.6 °C | 104.9 mm |
| November | 2.4 °C | 14.8 °C | 93.47 mm |
| December | -2.4 °C | 9.1 °C | 72.14 mm |
| Annual | 8 °C | 20.2 °C | 1240.28 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |