Weingarten, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.7 °C (low) to 19.3 °C (high). Annual precipitation averages 1090.2 Millimeters. Weingarten 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 | -4.8 °C | 5.2 °C | 61.98 mm |
| February | -3 °C | 8.2 °C | 69.34 mm |
| March | 1.6 °C | 13.6 °C | 95.25 mm |
| April | 7.3 °C | 20 °C | 128.27 mm |
| May | 12.7 °C | 24.6 °C | 134.37 mm |
| June | 17.4 °C | 29.1 °C | 88.9 mm |
| July | 19.8 °C | 31.2 °C | 98.55 mm |
| August | 18.7 °C | 30.7 °C | 75.69 mm |
| September | 14.4 °C | 27 °C | 80.52 mm |
| October | 8.2 °C | 21 °C | 84.33 mm |
| November | 2.2 °C | 13.4 °C | 101.09 mm |
| December | -2.4 °C | 7.2 °C | 71.88 mm |
| Annual | 7.7 °C | 19.3 °C | 1090.17 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 |