Gasconade, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.8 °C (low) to 18.9 °C (high). Annual precipitation averages 1116.3 Millimeters. Gasconade is located in USDA Plant Hardiness Zone 6b. 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 | -6 °C | 4.6 °C | 60.45 mm |
| February | -4.2 °C | 7.4 °C | 58.42 mm |
| March | 0.7 °C | 13.2 °C | 82.55 mm |
| April | 6.4 °C | 19.6 °C | 118.62 mm |
| May | 12.3 °C | 24.2 °C | 133.86 mm |
| June | 17.3 °C | 28.8 °C | 115.82 mm |
| July | 19.7 °C | 31.2 °C | 107.44 mm |
| August | 18.3 °C | 30.6 °C | 101.6 mm |
| September | 13.6 °C | 26.9 °C | 101.6 mm |
| October | 6.9 °C | 20.5 °C | 85.09 mm |
| November | 0.9 °C | 13.3 °C | 84.84 mm |
| December | -3.9 °C | 6.9 °C | 66.04 mm |
| Annual | 6.8 °C | 18.9 °C | 1116.33 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 6b : -20.6°C to -17.8°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 |