Spokane, Missouri has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.5 °C (low) to 19.3 °C (high). Annual precipitation averages 1183.6 Millimeters. Spokane 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.7 °C | 6.3 °C | 68.83 mm |
| February | -2.9 °C | 8.9 °C | 64.77 mm |
| March | 1.6 °C | 14.1 °C | 107.44 mm |
| April | 6.8 °C | 19.5 °C | 123.95 mm |
| May | 12.4 °C | 23.7 °C | 136.65 mm |
| June | 17.3 °C | 28.4 °C | 112.52 mm |
| July | 19.6 °C | 31.1 °C | 106.93 mm |
| August | 18.6 °C | 30.8 °C | 82.8 mm |
| September | 14.2 °C | 26.9 °C | 115.82 mm |
| October | 7.7 °C | 20.7 °C | 90.93 mm |
| November | 1.8 °C | 13.7 °C | 99.06 mm |
| December | -2.8 °C | 7.9 °C | 73.91 mm |
| Annual | 7.5 °C | 19.3 °C | 1183.61 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 |