Lake Annette, 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 18.6 °C (high). Annual precipitation averages 1086.6 Millimeters. Lake Annette is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.8 °C | 4.4 °C | 35.31 mm |
| February | -4.6 °C | 6.8 °C | 46.48 mm |
| March | 0.8 °C | 12.9 °C | 68.58 mm |
| April | 6.3 °C | 18.7 °C | 109.73 mm |
| May | 12.3 °C | 23.8 °C | 147.83 mm |
| June | 17.6 °C | 28.7 °C | 143.51 mm |
| July | 19.9 °C | 31.4 °C | 114.81 mm |
| August | 18.6 °C | 30.9 °C | 108.97 mm |
| September | 13.9 °C | 26.8 °C | 109.73 mm |
| October | 7.1 °C | 20.1 °C | 91.69 mm |
| November | 1.2 °C | 12.8 °C | 62.48 mm |
| December | -4.3 °C | 6.4 °C | 47.5 mm |
| Annual | 6.8 °C | 18.6 °C | 1086.62 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 |